We're already past the threshold for this counting as a full year of service time. So he could be brought up now and still not lose a year of control. We haven't made it to the Super 2 deadline, but I'd be a little surprised if he stayed down that long regardless.
He is ready now, so I don't have a problem with going ahead and bringing him up.
There most likely scenario is Phillips gets traded at the deadline and Albies comes up to play 2nd. Albies is our future 2B and will be playing there once he is called up. In the event the Braves are actually contending and Albies is playing well then I can see him being called up and being a super sub the 2nd half of the year.
Either that or he comes up in September. I don't really see a reason to bring Albies up unless Phillips completely falls apart, is injured, or is traded.
I think the braves will be able to move Phillips if he's playing well and they might even get something decent for him.