I think rebranding is a good idea. There are several reasons:
The project is losing market position.
There are several competing brands with similar names.
A brand change is a good reason to remind the project and restore its popularity.
Therefore, rebranding can help:
Expanding project scale;
Stand out from the background of the competition;
Increase the number of users.
I don’t think it’s necessary to include the protocol name and the word “Swap” in the new brand – it’s already widely used. The new brand should be marketing friendly and understandable. I would like to recommend the name “WinEx” as a new brand. It’s made up of two words – “winner” and “exchange”