Do you think Disney+ will be installed on 3rd gen Apple TVs, much like the Amazon Prime app, or will it be confined to 4th gen and above? Every press release I can find just states "coming to Apple TV."
In 2017, Tim Cook announced that Prime Video would be on "all Apple TV" later in the year, I brought up a similar question on this forum thinking at Prime Video might be on the ATV3, and there was plenty of posts saying that the ATV3 would not get Prime Video, which end up not being true of course, as the ATV3 has Prime Video.
I would say that a difference this time is that I think Apple still sold the ATV3 at that point for $69 in the US, which now, I am pretty sure that Apple no longer sells that ATV3.