While the specifics have changed some in the last year, the underlying need for an AT planet has not.
Heres a quick recap of the idea:
*A new planet bonus type is released that can increase the # of AT's you generate per turn.
*These AT are classified as personal meaning they can not be sold or given away to others.
*The maximum # of AT you can generate each turn 5000.
*When at the limit of AT you can hold (5000), personal AT are converted into regular AT at the natural rate.
Example if you have 500 regular AT and 4500 personal AT then on the turn change 4 personal AT would become regular AT giving you 504 regular AT and 4496 personal AT.*Since there is a fixed number of AT that can be generated each turn, planet sizes affect upgrade cost, price decreases by a % based on size.
Example a tiny planet may need 100quad naq to max out to 5000 AT generated per turn while a mindblowing planet may only need 80quad naq to max out.*When in perg realm, all personal AT generated by AT planets are converted into either naq or UU at market rates.
*As with all other planets it is able to be taken, have a def put on it, upgraded, and merlined.
Here are some numbers to show how a AT planet could look compared to other bonus types:
naq
0 to 4,800,000,000,000+ costs 19,280,314,042,425,000 (cost of 1 planet)
0 to 480,000,000,000+ costs 191,920,292,425,000 (cost of each for 10 planets)
UU
0 to 10,000,000+ costs 69,288,961,912,095,000 (cost of 1 planet)
0 to 1,000,000+ costs 696,209,489,010,000 (cost of each for 10 planets)
atk
0 to 10,000,000,000,000+ costs 82,304,506,586,268,700 (cost of 1 planet)
0 to 1,000,000,000,000+ costs 823,044,732,510,000 (cost of each for 10 planets)
def
0 to 10,000,000,000,000+ costs 128,600,801,964,046,000 (cost of 1 planet)
0 to 1,000,000,000,000+ costs 1,286,007,047,325,000 (cost of each for 10 planets)
AT
0 to 5,000+ costs 100,000,000,000,000,000 (cost of 1 planet)
0 to 500+ costs 1,000,000,000,000,000 (cost of each for 10 planets)
As you can see given the right costs the idea of having even a maxed out AT planet isn't any more crazy than say an atk planet giving you 10tril support or an UP planet giving you an extra 10m UU a day.
Some hard numbers on how the scale of said AT planet might look:
*5000 upgrade slots.
*The Initial cost would be 8,000,000,000(8b).
*The price per upgrade would increase by 8,000,000,000(8b).
*The last upgrade price would be 40,000,000,000,000(40t).
*Total cost to max out a planet 100,020,000,000,000,000(100q).
*Total cost would drop each increased planet size by 2-5%
For some perspective...
A 100k mind blowing UP planet costs 7.3t to build.
The same amount put into the proposed AT planet would gain only 42 extra AT a turn. (2016 AT a day)
A 100b mind blowing ATK planet costs 8.2t to build.
The same amount put into the AT planet would only gain 45 extra AT a turn. (2160 AT a day)
People will still be able to buy AT, no one will suddenly have an unlimited supply of AT, the risk and cost balance the reward, the pressure on the black market is eased, and overall turn generation will become dynamic to remove the need for future updates...
Edit: Also note that for all the planets out there with large stats you'd be hard pressed to find some with 150t+ invested in them(in a single stat) and that that translates into roughly 200 AT a turn on the proposed planet.