Hi,
I have played a lot of GOTM in Civ IV. As a matter of fact, once I found out about GOTM I played lots of old GOTMs because even when I was too late for submission it was still fun to compare to what others were doing. It was great fun, thumbs up after all those years!
Therefore: All you can do to make this happen for Civ5 would be greatly appreciated.
One idea: How about some poor-mans-GOTM for Civ VI for starters while we can't do real GOTMs yet? Just start from the same save, no submission, no ranking, just to discuss how everyone was doing in the forum?
Cheers!