HTC puts out irregular updates about twice a year. If we assume they dropped CT before 2.12 came out (the huge update from April '08), they've given us a new fighter with 2 variants, a new bomber with 2 variants, 2 new ground vehicles, updated a vehicle, updated 5 fighters one of which had two variants, updated the CV fleet, and implemented a feature which IIRC they had said before would be impossible or extremely difficult. If I had to guess what was coming next, I would say it would be more graphics updates and something big with terrains. I'm pretty satisfied at this point.