Osprey Mass Battle Basing?

[Mac V]

I know it's a crazy question considering the game doesn't even have  name, but does anyone know if basing will in the game?

I'm guessing square bases due to the word MASS, but before I get painting an army for Dragon Rampant, I'd like to have some idea so I'm not rebasing......

[SotF]

Don't play it myself though I'm tempted from seeing it. A lot of the armies I've seen are round based...which is becoming common for a lot of games anyway where you can get trays if you need to rank them up for other games which is what I've done for games that have odd setups for it such as OGAM as well where it doesn't really matter