Just before it goes down, here’s the currently listed spoilers for upcoming troops, from Taransworld. Thanks to them for the information, and spoiler warning for what’s shown below.
From then onwards, it just becomes unable to give information. Hope these are useful.
For further spoiler information on upcoming troops, you can check this page, but it’s not as organised: (!) Spoiler Alert (!) – [Any Details Provided are Subject to Change] (Part 2) - Spoilers - Gems of War | Forums