Not a chance:

1. Too early.
2. Uses a fraction of the max cart capacity for 3DS.

I don't think so, but man Revelations looks far better than the other 3DS games out right now.

Pretty much the only comparable 3DS game I've played is Kingdom Hearts 3D: Dream Drop Distance, which is only a minor visual improvement over the PS2 entries from what I can tell. Mario Kart 7 looks pretty good, running at 60 frames per second, but it doesn't really push the hardware so much.

Monster Hunter 4 looks great. It's getting some flak for its graphics... from Sony fans, mostly. I think it looks markedly better than Tri, especially in terms of art design.

Nano Assault

It's all about the Vita.

If the PS Vita gets killed then most developers won't want to try graphic whore games because they wouldn't have worked on Vita. However of course there will be the few that just push graphics for the sake of pushing graphics. In that case the 3DS will get a few games that look much better.

If the PS Vita starts picking up speed then developers will be almost forced to push graphics by making multiplat games as equal as possible. In addition many exclusive 3DS games will feel the need to have better graphics. Graphic whore developers will however move to Vita pushing graphics just for the sake of pushing graphics on that system. In this case the 3DS will get a lot of games that look better.

If the PS Vita stays as is just barely staying alive then 3DS graphics won't get much better. Developers wanting to push graphics just for the sake of pushing graphics would develop their games mostly for Vita while good developers will keep making all around good games. The Vita graphic whore games that make the best graphics on 3DS look like finger painting will be played by so few people that the general consumer will not care. In this case 3DS graphics do get better, but not super duper better.

Or of course Nintendo and Sony could team up and make a 3DV. In that case our eyes will boil with the awesome graphics!

I've always had this crazy theory that Nintendo was purposely restricting their libraries for other devs and letting Capcom get full usage. This being part of their Monster Hunter deal. Note: This is a crazy theory and yes I understand would be totally ridiculous.

Capcom just has really talented devs.

JoTheBro
What?
that was confusing

I think that Moster Hunter 4 will be as impressive but won't have the same level of textures. You'd have to build a game around narrow corridors and closed environments to match or surpass RER. It also sacrificed gameplay for graphics when they ignored framerate stability. 

The only time I had any issues with the framerate was in the loading rooms. With 3D always on, I never suffered any perceivable drops.