After the weekend is fine. The next deadline, as I understand, is April 5 at which point we (Tor people) need to have all the proposals ranked. So, your final proposal would need to be ready some time before that (say, end of March latest) as we need time to put together final rankings (with many different mentors, etc) before then. We have something like 32 proposals in the pipeline, way more than can be accepted.
Just gonna add the earlier the better. Getting revisions in now will allow you and Meejah to go through a few iterations (rather than a last minute update which would be too late for feedback).
We're getting our ducks in a row long before the April 5th deadline, so scraping close to that means that your revisions might not be taken into account.
Cheers! -Damian