What the purple place is saying (similar topic). I'd be surprise if the results here are any different.
There's a 50/50 chance Sony actually announce this as their strategy later in the week. If so I wouldn't be surprised if they skip a Showcase and just let Summer Game Fest host all their stuff; they know the backlash from their core fanbase would overwhelm any strong reveals from a Showcase online.
Although, it partly also would depend on how Sony handled Day 1. If it were tied to their own storefront/launcher, a quality one with a lot of features and 3P games also available...while there would still be backlash, it wouldn't be nearly as much. Because whether it's the console or a storefront, SIE would still have full control and priority of the platform within their own ecosystem. It'd be up to them to make a launcher work out financially to offset any transfers from console to PC, but at least they'd have the full means of implementing it in a way that's best for them.
All of that goes out the window if 'Day 1' basically means Steam. There would be significantly more backlash among many core fans & owners of the console, for starters. There would be a heavier drop in all sales metrics console-side going forward too (hardware, software, MTX, subscriptions, peripherals). Sony would have significantly less authority in arranging the PC environment to best serve their revenue & profit needs, meaning less cash flow, ultimately meaning lower quality on the console side AND a drop in game quality (most likely), frequency, and scope. It'd also mean no more exclusives, both WRT 1P and 3P (why would a 3P make a timed PS5 exclusive if SIE's own 1P games were Day 1 on Steam?).
Again, either scenario isn't optimal, but tying Day 1 exclusivity to their own storefront/launcher and basically pretending stuff like Steam doesn't exist outside of the odd GAAS, would facilitate longer-term better integration and amplification of content and hardware across the board, than going 'Day 1' as a 3P on PC.
My main qualm with the PC storefront/launcher idea is that, it's simply too soon. I don't think Sony "need" PC that way for at least several more years. If anything they should be looking to bring features present on platforms like Steam, to PlayStation. The talk about a handheld is something they're going to need eventually as well, to keep PlayStation hardware competitive in the market, although for right now I think the PS Portal and any revisions tied to it are a good enough approach for the next 2-3 years. A native handheld to complement PS6 would be ideal to help start the 10th-gen.