Will the [Avenger] ships stay as variants, or might they go back to their modular nature?

It's still a bit up in the air at the moment. As it stands, they still function as modules, but they're set up as variants. The whole mechanics of swapping them in and out is a bit, we're not quite sure where we want to go on them. There's no hard answer either way at the moment for them, I'm afraid.