Here're the pictures of two upcoming MIAs from Amiami. Both the mecha, Methuss and Gaza C are from Gundam Zeta, both being released as HGUC models not long ago, so it was pretty much anticipated long ago that the MIA version will come out, sooner or later. Methuss comes with a Mega Bazooka Launcher, the armament which is being popularized by Hyaku Shiki, not Methuss. Folks who buy this MIA can be certain that the Launcher is compatible with the original owner released a long time ago.
Images are from Amiami.
On the other hand, Gunota Headlines reported that Bandai is currently concentrating the lines of Gundam products on SEED MSV, MS IgLoo, and some other series, since there is no new anime or movie released. Some of the models coming out this October include:
1. MG Strike Gundam IWSP with Grand Slam featured in the PG version (4,500 Yen)
2. HGUC Char's Gelgoog (1,600 Yen)
3. HCM-Pro Nu Gundam (3,000 Yen)
4. Gundam Gold Frame Amatsu Custom with new weapon (not sure what scale and price, most probably is a modified version of the previous 1-100 scale version which is 3,800 Yen)