I've commented on this type of storage question before, but ever since, it seems quite clear to me that at the present time, there are simply way to many potential options and too much uncertainty about the life cycle and the storage market. This isn't at all like the last couple of gens, where we knew the storage device would have to be an HDD. Trying to make an educated guess now, would be like batting blindfolded. Mind you, if someone takes a swing now and hits a home run later, it would be pretty impressive and/or lucky.
What it does make me think, is that the potential for this gen to be 'lengthened' or 'shortened', is quite possible. Maybe Pro can last, maybe a Premium is needed or planned, but neither seems all that unlikely. Due to the reasons stated above, it might also make sense to launch next gen earlier than anticipated, offer a base (and/or higher tier) PS5 console, and have a 5 year gen with no upgrades.
A longer current gen means a larger leap next gen, but having to deal with some very outdated tech in the coming years. A shorter current gen means a smaller step next gen, but also a more affordable launch price again. Either way, making this gen 'longer' or 'shorter', makes the PS5 storage decision much easier, and would probably make quite a few other hardware decisions easier as well.
PS1 - ! - We must build a console that can alert our enemies.
PS2 - @- We must build a console that offers online living room gaming.
PS3 - #- We must build a console that’s powerful, social, costs and does everything.
PS4 - $- We must build a console that’s affordable, charges for services, and pumps out exclusives.
PRO -%-We must build a console that's VR ready, checkerboard upscales, and sells but a fraction of the money printer.
PS5 - ^ -We must build a console that’s a generational cross product, with RT lighting, and price hiking.
PRO -&- We must build a console that Super Res upscales and continues the cost increases.
