I would prefer they issue the news as soon as they can and let the warrant overhang disappear amongst the high volume that would likely occur from the type of news we all expect. It would likely not even be too noticeable.

It works both ways. You might have a bit more resistant on good news if a few million warrants remained to be exercised, but if the hope was to have them all exercised before big news, you would be starting from potentially a considerably lower share price if exercising warrants continues to cause additional selling to cover them over the next 3 weeks. I think the final outcome is the same in either scenario. Getting on with good news sooner never hurts...