ShinHakkaider
Adventurer
Plus, let's face it, Paizo is absolutely straining at the limits of the amount of work/product they can push out already. They're always scrambling to get things done. In order to take on 5e stuff on top of what they're already doing they would have to expand their staff massively and that's a huge risk for a company like that to take.
This is true. In fact I pretty sure Lisa Stevens and EriK Mona have said on more than one occasion that Paizo as a company are going to have only so many employees on the payroll and they might be close to that upper limit now.
I want to see Paizo do well but I also dont want them to get to big either. I really enjoy their products and Pathfinder has given me a "home" after I had been considering leaving the hobby for good. So I hope that they stay around (and independent from WOTC) for a good long time.