Tbh. Based on everything i've heard of how the engine works and how many problems they themselves run, not to mention players, i would think fans of the game would accept them using time to just completely working it over on new updated engine. Since i bet that would make development faster after upgrade was done. And i doubt it would take too long to catch up the current situation in game, since all art etc... are already done. That would also give good time for artist to make new art and experiment some without that big of a pressure, thus possibly improving future art assets etc... in the game. This of course if we take things in good trust and don't expect them to be lazy.