The website http://www.elevenwarriors.com/ has tweeted about it twice now, saying the 2nd time they are more sure than the first. This site is an OSU-devoted blog site with a good reputation. They of course can be wrong, but they're not just a run-of-the-mill rumor site.
There have been lots of these rumors about Meyer/OSU since Tressel was fired. These are the first from what I'd call a "reputable" source that it may be happening.