I've been preaching that they remove Flight Deck and Time Warp so they can replace it with a B&M invert. Kill two painful birds with one smooth stone.
Additionally, I still think the park will RMC either Wild Beast or Minebuster. I've heard some enthusiasts and other individuals say to tear down Wild Beast and the go carts to expand and RMC Minebuster. I don't know, however, how an RMC "L" shaprd layout would look which is why I'd prefer Wild Beast.