And now we wait for people whining for a Sinnoh remake.
It'd be interesting to have one, but I really don't think there will be a need for one.
The quality of the game in regards to looks was a vast improvment over Ruby/Sapphire, and it's really where the design for B/W came from too. They both look like up-to-date games.
Making them 3D would be nice, but I don't think there would be the call for it.
You're more likely to get calls for a new remake of Red/Blue/Green/Yellow in 3D, since the remake for those is of the same generation of this new remake.