On one hand I've gotten used to the console feel, which (in a sense) provides a unique atmosphere to the game, and it may almost seem awkward to upgrade the graphics after playing with it for so long. On the other hand, I've talked to a number of people who I believe would enjoy this exact kind of game, but could not bring themselves to play it on the grounds that the character format of graphics is simply unplayable.
As a way to make the game as wide-spread as possible I would say we should definitely have the tile version be the main format of the game. Mrazerty's idea of allowing for both simultaneously is interesting, but I figured it would be a lot easier to supply the games separately, one as console and one as tile. Unless there are plans to significantly change around the console version (like, for instance, going with the enhancements) it would hopefully be easy to implement once the tiles are actually a part of the game.
Given the choice between one, I'd have to go with tiles. For the sake of the game's increased demographic, I guess. Emulated console with enhancements sounds awesome, but it also sounds like the tile version is going to get that kind of treatment anyway. I am perfectly fine with the current setup personally, but any changes will be welcomed (I eventually opted for the tiled Nethack over the console one).