ah well Chris would be about 32 in 2012 so that will make him act more mature as Kirk but why 2012 can't they do it quickly
What you don't seem to be grasping is that
that is quickly. You can't just decide today "I'm going to make a movie" and tomorrow go out and make "Star Trek: The Sequel". There are a lot of preparations involved, a lot of work involved and all of this takes
time.
First, there needs to be a finished script -- 6-8 months is not unreasonable and may be a bit overoptimistic. Once that's mostly ready, it gets shown to the studio. Then revisions and fine-tuning can take another few months. If the studio then gives the go-ahead to begin, work on the actual movie can begin.
Not filming yet, no -- there's more preparation to do first. They'll have to do storyboards from the script, work out the set designs, prop designs, costume designs, effects designs -- everything about how everything's going to look. Then you have to work out the production schedule, cast the actors, hire the crew, hire or purchase the equipment you'll need. You'll need to make arrangements for feeding everyone, lodgings for location shoots, transportation for your people and equipment -- all of the things which need to happen so that everything and everyone are in the right places at the right times to make their parts of the movie. 6 to 8 months for all of that, minimum.
Then you're ready to start shooting. That's a month or more right there, just for principal photography, possibly to be extended due to illness, bad weather, accidents, transportation delays, damaged film or cameras necessitating reshoots. There'll also be second-unit photography going on later, after the main cast has finished their stuff.
Then comes post-production -- putting your filmed shots together, editing them down, adding, subtracting, adjusting until balance is achieved. Then comes all of the effects work -- lots of time and effort there -- and after that the music needs to be composed. 8 or 10 months for that.
As you can see, this adds up to more than two years --
minimum -- and this is the extremely-simplified version. Making a movie like this is a pretty huge and complex undertaking, and very resistant to "do it quickly", if you don't want to end up with something which
looks as if it were "done quickly"
-- i.e., like amateurish garbage (here's your cue, everyone who thought that that was what the
first movie looked like.

)
It's going to take time. Accept that -- realize that these people are professionals and that they know what they're doing. Give them the time they need to do the work, and leave off the hand-wringing about "can't they do it quickly"; that
is not going to make the movie happen any sooner and
it is very likely to get on other posters' nerves here at TBBS, if kept up. Not a desirable thing.