I disagree with your assessment.  If that's going to be how it's like, there's no point in calling them JRPG's and WRPG's anymore.  There are games made in the past in Japan that are a lot like what you would call a WRPG and vice versa.  What exactly defines a JRPG?  Turn-based doesn't make sense because there are plenty of games that still carry the "JRPG" title without being turn-based, and there are turn-based WRPG's.  
Then if you go to the whole "choices" thing, Shin Megami Tensei is a good example of a JRPG that is heavily choice-influenced.  If that doesn't seem like a good example to you, then Chrono Trigger.  
There isn't a definitive line between JRPG and WRPG if it isn't defined by where it's made.

I think you're half right.  The bold being the part I think you're wrong about.  There are still a good many "turn-based" games out there.
However I definitely think that limitations did make turn-based necessary.  The ATB system in Final Fantasy was used to make combat less "turn-based" and more dynamic. 

Actually, there is no point of calling them JRPGs and WRPGs anymore, things have changed and the lines have been crossed. I was not stating my opinion on the matter, JRPGs is a term used to describe turn base, usually cartoonish style RPGs with young main characters with unique hairstyles. I know some WRPGs meet those conditions, but as I said, these elements were first created and evolved in Japan and thus.. JRPGs. If the OP suggests that all the RPGs from Japan would die then he is greatly mistaken :)

However, the Tales series has been around for a while and is not turn based, but meets those other requirements.

I still think many "JRPG" or "JRPG-like" games will still exist as long as RPG's are still widely played.

SquareEnix has never lost money on a Final Fantasy (outside XIV but it might be profitable in the end). However, Tomb Raider, Hitman and Sleeping dogs sent them deep in the red. 

I think their actually poised for a comeback. Say what you want but FFXV and XIV have been receiving positive press and the genre on a whole is looking stronger than it has in years

FF XV doesnt look to be very profitable since its exclusive to Ps4 and Xbone, which will probably have a really small instalbase for a while, though i dont know when its releasing so that could change. The game looks like it was expensive as hell to make as well.

I don't see why the smaller budget JRPGs would die out, those seem to be the ones least affected by bloating development budgets. Gust makes a good to great game and can make a profit off of 60,000 sales in Japan, there's nothing inherent in moving to a new generation that requires your budgets increase unless you want to push the envelope. If all you want to do is slowly move to new architecture and get whatever benefits you can within the budgets you already have then that works too.

I read an article a while back about how PS2.5 games were developed which were the smaller titles that were better graphically than a PS2 game but not up to the standard of your average PS3 game technically. If that's what you're doing costs didn't really increase at all. Sure there were growing pains (Atelier Rorona looks way worse than Meruru or Ayesha) but you can make great games without a need to increase your budget beyond your expected sales.

and btw I've just counted and I have 12 JRPGs on my shopping list until the end of 2013 (lots of imports though), so much for "dying"...

I really hope not because I love them . I already pre-ordered SMT 4. But I don't see them dissapearing I mean they are really popular in japan and they have a cult following in the rest of the world. I think they will continue for many generations!