Hello V-rabbit!
Thanks for asking! For now, we ask that our Hackathon submitters keep the game as close to as it was during the original submission for the next few days. If it's minor bug fixes and changes to the game page or description then sure, but since we are actively in the process of looking through entries, please refrain from content updates and major reworks.
That being said after we finish announcing the winners and officially "wrap" the Hackathon, we encourage everyone to keep working on their projects!