There are so many posts in this thread, I thought I'd chime in with my $0.02 as well.
When I and many paid $8k for EAP+FSD (I paid for it on 3 of my 4 AP2 Xes), We were lead to believe that any hardware upgrades required for FSD, including Tesla Network, and Coast to Coast Driving, were included, and will be delivered at "some time in the future".
Once HW3 is rolling out, (which is supposedly an easy swapy), I'm sure that Tesla will upgrade our computers, either through a service center or Mobile service. The HW3 computer wouldn't be more than $50-100 worth of parts, and $175 worth of labor considering 1 hour at Tesla Service rates.
So $300 value for $3000 paid early. Why does anyone think that Tesla won't do this? Because they are listening to their service advisor or online support representative? They've been consistently wrong on so many things.
Sensors is another thing, even if there is an upgraded sensor suite, do you really think that the hardware (even with 8 cams, and radar/s), is more than $1000 worth of parts and labor? The cameras are an easy swap out, as the wiring is already in place, (to bring AP2.0 cams in line with 2.5). That's still $1500 value for $3000 paid early.
I'm not worried. I feel like there will be some AP3 news during or after the Y Reveal this Thursday. It'd make no sense to demonstrate, nor ship Model Y with AP2.5. I think they're going to do some sort of "Advanced Summon" or demo the Y driving in Autonomously for the unveil. (Fairly easy to program in a controlled environment)
I'm just patiently waiting for my Early Access Program Invite.