So the next MG after Wing Gundam is going to be Full Armor Gundam. I suppose it's going to be based on MG Gundam RX-78-2 Ver. 2.0 then. It would be a huge news if Bandai decides to design another MG Gundam RX-78-2 for this new release.
The other items on the list (related to Gundam) are RG 1/144 Gundam RX-78-2 and HGUC Double Zeta Gundam
The magazine cover of this month's issue.
Model Graphix June issue will be released on April 24th at 780 Yen (inclusive of tax).
Originally reported by GToys Blog, which mentioned that MG Full Armor Gundam will be released in June at 5,250 Yen (inclusive of tax), but this release info is yet to be confirmed.
Images are from Modelkasten.