Since 4.0's adjustments I have had a good bead on the direction the devs were going with AST, what philosophy they are employing, and what the intentions are. It has been a fun job overall to me for the last 7 years! Frequently controversial, but usually understandable, the job design has been pretty consistent at core levels every couple years. While the micro mechanics of the job constantly change - which, understandably, leaves some people miffed and displeased - the core essence of the job has been stable, and that is what has kept it fun and engaging to a majority of its raiding population:
The upcoming changes, honestly, do not make a lot of sense right now.
AST is a job which has always forced one to receive unknown variables, and had to react to the situation to make the most out of them as possible. However there is another aspect to the job: investing resources early, to get higher value out of them later. It is a very satisfying job to execute when your decisions are efficient, and intelligent. I feel this latter idea is where they are trying to shift cards - which currently represent the former - towards. Unfortunately, there is a chance that this may fall flat in execution and reduce AST away from the type of job people enjoy for those who currently play it, versus the type of job people who do not play AST want it to be.
I am not actually all too upset about the removal of RNG. I do not feel that randomness is somehow intrinsically necessary to the job. I would rather it still exist, yes, since it adds some exhilaration and interest to the job--how no 2 pulls will be necessarily alike. But I am open to the idea of an experiment.
However, I have great concerns about the manner in which they have decided to take this 0 RNG trial route. Making our 4-pack Sleeve Draw possibly give us 1 DPS card per usage, has some grievous consequences on gameplay. It means there will be a frequent occasion our rotation ends up consistently trashing half our cards, which will end up feeling extraordinarily awful knowing that half our deck is going to do nothing. On the flipside, during prog season those mitigative and curative cards are going to feel oppressively strong. Some people have grievances about feeling forced to play AST despite them not liking its current state because of its performance capabilities in the best hands; this has potential to be exacerbated even further when AST can have this much defensive utility in one button. It could be fun and interesting depending on execution, but there's a very real chance it will feel rather boring and uninspired, and the cards will feel like Just Another Button, I Guess.
This direction they have chosen does not make much sense, does not currently line up with the way the job has always played since its inception, and has potential to be a real albatross for Square.