The VTT is the least of your problem. The fact that FGU could support a lot of automation is beside the point. For instance that the character sheet could be made parse powers list is nice but not needed one could set up the dice rolls or just roll the dice manually and add things up.Hey, I don't want to get us off the topic of @Jacob Lewis 's original post about missing 4e, wishing we could play it, or how we could bring it back.
I'm sorry for my part in getting us off topic.
And I have no desire to block anybody. I've been enough of a curmudgeon lately that I've brought this on myself.
But back to the original topic ...
What if there was a way to play 4E, using the original books, with a very limited tabletop? Not automated like Foundry or FGU? Maybe more like Owlbear rodeo with our original books?
The issue is getting a pool of players together that are interested. Letting people that you are there to run a game or willing to play in one to make it sustainable.