In 2018, I answered a similar question here :
viewtopic.php?p=252097#p252097 .
Now, with the game almost done, my answer differs : for some big bucks, I'd likely partner with a big publisher to get an HD version of TE4 out there, because this would not alter anymore the gameplay & development of everything I wanted to put in the game.
But right now, I don't want to do anything, so they should have a full team able to correctly take care of 99% of the stuff, with me being only a consultant...
