I doubt that a playable Typhoon would fit the game definition of a "battlecruiser".
It's a battleship. Which means it will probably have a turn rate on par with the larger cruisers, but with slightly more hull, shields, and punch. And have more of a focus on Tactical rather than Engineering.
But I do agree that it doesn't need hangars. Would be a bit out of place.
Personally, I see the Jupiter as more fitting to a hybrid role. A "dreadnought carrier", so to speak. It should be a step up from the Atrox Class. And it should have more of a focus in other areas besides Science, since it's been seen as a "flagship" in some Starfleet task forces in the story missions.
This is the official dev response from December 2012's Ask Cryptic.
"Q: (cylon74656) Will the Steamrunner Class be available for those of us who don?t play through Steam? And also, when will we see the Typhoon Class playable in-game?
The Typhoon Class is a dreadnaught that will most likely not appear as a playable ship until we increase the skill point cap to full Admiral. Even then, we haven't yet decided if this will be a player ship, but we can be convinced to make it so if there is enough support for it."
To respond to the answer of the dev I would TOTALLY support it!!! I want my Typhoon Class now I demand it!!!
Admiral Eric of the U.S.S. Stargate 113X
Captain Kross of the I.K.S. SODA CRUSH/Vice Admiral S'Tev of the R.R.W. Destrov
Played STO since late Season 1 and to be exact 4th of July 2010
Fair enough. The Jupiter WOULD fulfill the carrier gap. The one carrier i would use as well. And the typhoon... Well lets find a different flight deck shall we? Maybe the challenger? I want that ship as well... Damn. And I support it as well! Both of them.