There will not be a Switch that can't switch.

Also, enlarging or shrinking the unit is almost certainly out of the question.  It would lead to Joycon incompatibility.  They could make a Switch Pro though with more muscle and a gorilla glass screen that allows them to eliminate the bezels.

Also, the problem with the SP design is that it would cost the system two inputs since circle pads, by their very design, cannot be clickable.  Which would cause game compatibility issues.

There was a 3ds that couldn't 3d.

At present the Parker is far too expensive.  And not designed for consumer electronics. 

Also, they still wouldn't passively cool it.  They would actively cool it for the same reason they actively cool the Switch: they can maintain a higher constant clock speed without throttling.  Technically, they could passively cool the X1 but they would either need to lower the clock speed or deal with throttling to control the heat.  If they're going to spend the money on the Parker for a future revision, they're going to want to get everything they can out of it.

The 3DS was not building every aspect of its branding and core concept around that.  The 3DS is a dual screen gaming handheld.  That's the foundation.  3D was a unique feature.  The Switch is a home consol handheld hybrid.  That is its foundation.  And Nintendo has brought this up every. single. time. they speak about it.  And it is the centerpiece of their entire marketing campaign.  And it is the sole advantage they have vs the PS4 and Xbone from a hardware perspective.  A Switch TV would just be a very underpowered system that doesn't do the one cool thing you see in all the current commercials.  

The whole entire point of the Switch's existence is bridging home console and handheld gaming.  And it has been a big success on that foundation.  Dropping that would be foolish.

I honestly doubt that we'll ever see another clamshell handheld from Nintendo, unless it's some kind of 3DS special edition. Not to mention that this design would have nothing to do with the Switch concept (no TV docking, removable joycons etc). It'd be just another handheld, but with the same internals as Switch. Whatever the future hardware revisions are going to be, the "switchness" is here to stay.

This.

How do you know? Have you visited the future?

The 3DS didn't have 3D.
The Gameboy Advance had a revision that was a clam-shell design.
The 2DS wasn't a clam-shell design.

There is zero physical reason why there can't be a "Switch that doesn't Switch" except that you disagree with the concept.
And that means you don't have an argument.

Who cares? With the Nintendo DSi, Nintendo abolished the Gameboy Advance Slot, which actually BROKE compatibility between some DS games/accessories.

Besides. You can enlarge the screen and retain Joycon functionality, it doesn't have to fit flush with the screen you know, Nintendo does have Engineers which are intelligent.

Why should it be any different than the current Switch? Please. Enlighten me.

No one is saying to "drop it". - You can have variations of a platform that cater to different demographics/needs/wants/desires and you know... Sell even more units and stuff?
I mean. Nintendo did it with the 3DS.. They released the 2DS, then the New 3DS XL, then the New 2DS XL and so on.

People are all different and want different things, sorry to break it to you... But other peoples needs/wants/desires can and will deviate from your own.

Just call it a very unbold prediction.  Imho, it wouldn't make sense when looking at their current strategy. 

A Switch that doesn't Switch wouldn't be like a 2DS.  It would be like a 3DS with one screen.  It would be a fundamental alteration to its core design concept.  3D was a neat feature slapped onto a DS successor, one Nintendo stopped trying to sell as "a big deal" very quickly.  It's the DS part - dual screen gaming - that was the core, foundational design principle of the DS line.  

No it doesn't *have* to fit flush.  And the screen could be bigger.  It would look ugly and clunky and make dock significantly larger, reducd the practicality of portability, necessitate a whole new line of game cases, and make the unit less comfortable to hold in handheld but you *could*.  Or they could stick to the current form factor and focus on eliminating bezels and upping resolution.  And dropping that slot reduced manufacturing costs.  What you propose would do the *opposite*.

I was referring to the SP design in the OP, which showed circle pads in place of analogue sticks.  which is the easiest way to have a fairly compact clamshell.  And circle pads cannot click.  Therefore, two lost inputs used in many games.

And my point was they have the whole Switch brand firmly built around one, single principle: it can switch between handheld and home console.  I doubt they will deviate from that and looking at current sales it seems foolish to do so.  And again, the variants of the DS and 3DS never fundamentally altered their core design.

And I wouldn't mind the existence of these.  I'm just pointing out that they are unlikely to happen.  I can see a Switch Pro and a basic revision that's basically the current one with perhaps a higher quality screen (gorrilla glass), a better dock to reduce scratches, increased internal storage, and better battery life.  But doubt we'll see anything beyond those.

Though removing a screen from a ds/3ds would make a large number of games unusable, Switch games are already designed to be playable on a TV. I think that if they can get the price low enough by removing the screen, battery and the seperate dock, it could have a very good impact on sales. Lowering the price of entry does wonders.

Though as a prediction, you may be right that it will not happen.

If that were sufficient reason they would have done it already.  Removing all that wluld drop it under 200, maybe lower.  If that's not enough, I doubt it ever will *be* enough.