As long as the submitted game is significantly different from the original template, yes. 👍
We have some basic examples of what is allowed on the jam page, but I also tried to better explain it with this pinned comment on discord: https://discord.com/channels/258623956158906368/630511209778774037/1222146236325...
A warning though, if your game isn't significantly different from the game template you originally started with, your game may be disqualified from the jam.