The rumors were true. Re-release of MP-10 Convoy coming in May of 2015.
This isn't one of the Hasbro Asia re-releases either that are always way more expensive.
Though with most Japanese re-releases, there isn't probably a lot to go around.
Note that MP-10 was re-released by TakaraTomy back in 2012 when MP-12 Lambor was first released. Stock went pretty quickly and there wasn't a lot of announcements about it.