improveFE into something fantastic first - use forum to get the ideas, there are zillions...hell, you can do 1-2 DLCs/Exansions with all of it. Get us better tactical, more research, weapon crafting, dragon hatching and experimentation on living beings (morphing?), and tactical great battles - longer, larger, sieges, flying, diving, underworld....
Next, make gal civ III with more planetary tactical combat?hell, get us GalCiv multiplayer where two teams would have a commander leading strategic struggles, and Generals and admirals leading colonization and tactical combat as well as naval battles! Why not make some things like arcade battles, like we had in Star control? Make it something Master of Orion, Millenium mk2 and many other games never managed to go to...make it EPIC!
Use engine you have, and create a fabulous Story driven campaign, Which you can expand in 6 months DLCs. Just choose a good story, or use something already out, like witcher world or similar.....That game can have a MP option of tactical battles only (say, large terrain like 100x present battles in FE, up to 6-10 sides, alliances, starting money and mana to buy creatures and units and engage, capture flag, castle, mana shards (but no building, just like a giant chess batte) - terrain having some treasures, neutrals etc... but turn based battles, where allies can play simultaneously (or even go real time?)
As the last, I beg of you, create a new Demigod or whatever you wanna call it.
Present something new to the MOBA community, something Demigod was at start, and can be again. Something I know you can achieve (since all the other ideas are gobbled up by EA and similars, honour to few exceptions....)
Well, my dreams were flying high....I'll let you nicely surprise me again...and again...as you always do.