Is it hard to make a few thousand objects interact and work simultaneously on four or five year old kit without making it slow down to a crawl? I think so, yeah
Unfortunately we have no timeframe for you right now. Progress is being made, but it is taking longer to accomplish than anticipated.
8 years-old for the base consoles (time really flies lol). I'm hoping it comes to the PS5/Series X/S at the very least, but i know that would be quite divisive. DTG are in a tough spot here, IMO. They're probably going to have leave the base consoles behind at some point, but until the install base/availability vastly improves it would be a mistake. TSW3/Summer '22, maybe? Idk.