I'd like to preface this by saying I know that the world doesn't revolve around IOI participants or whatever, this is just a suggestion. There is an upcoming Div. 1 and Div. 2 round (#728) scheduled for the 25th of June 15:35 UTC. I think Div. 1 rounds are pretty rare as it is at the moment, and that most serious IOI competitors practice on Codeforces anyways, so it would be nice if it could be rescheduled to some day that doesn't clash with one of the competition days. That way, it can also serve as a nice practice contest for the IOI :)

E: This topic seems to be supported by many in the Codeforces community (judging from the upvotes), I think it's fair to tag MikeMirzayanov now.

E2: adedalic too!