There's nothing impressive enough in B&S right now (having played CB and the current OB) to make me want to pay a monthly fee for it.
Then again, if I didn't have the friends I have on TERA now, I wouldn't still be here either.
BnS may have many shortcomings but combat will not likely be one of them.
It's not like GW2 or WoW in that you have a reticle and the camera is mouse move. More skills are targeted but I've seen many miss. It's simply less movement oriented.
Biggest problem that I can tell will be that so much of it is instanced.
Overall, it's definitely a more progressive game that will cater to more people. No healers, no trinity. The holy trinity always presents the exact same problems. Populations are dps overloaded, tank skill is far too important relative to others, healer classes are boring to play (PvE anyway).
From the outset the dungeons look more interesting, with more promising mechanics than Tera dungeons. Especially lowbie ones. While LoT, ET, FoK and BT are not bad, most of the pre 58 dungeons are pretty monotonous and boring.
The biggest difference will lie in presentation. The animations of BnS are stunning, visceral. The cutscenes are great, and the story would suffice as a single player RPG (possibly slightly generic, but passable, unlike TERA's jumpy storytelling).
One question. Does it have RNG enchanting?
It looks pretty! As someone with a subcription to TERA (and not a one month subcription) I can tell you, I think it looks interresting.
Doesn't mean one has to leabe playing TERA :p One could play both or switch back and forth. MMO players have been doing that between MMOs for quite a while now.
Also, lack of a US release date means lack of interrest untill a release date is known!
Though, in my case anyways, I've known of B&S way before I knew of TERA, but glad I found out about TERA :)
Nobody answered my question ._.