that's the big gamble, as long as they stay true to TOS and don't start remaking classic episodes, then by rights they will be okay.
it will be when people want the new crew to remake more classic TOS, is when the problems will occur.
imagine The Doomsday Machine on the big screen, with todays CGI (excluding CBS update) this would look killer, but would we get the same feel for the characters and would we like seeing classic pivotal scenes, recreated by todays lot?
of course this deabte will run on and on, but now they have opened the gates, there is no going back....