That's not how math works.
If:
The sales for first month of D&D2024 > the sale of the first two years of D&D5e
And:
The sale for the lifetime of D&D5e > the sale for the lifetime of every previous edition
You can't conclude that:
The sales for first month of D&D2024 > the sale for the...
Of course. The rulebook will nominally be compatible with 4e but will need a conversion document to aid that to some extent (as they have already signaled). However, there will be a hurdle of using 4e books with the new ruleset, which will inevitably increase as time goes on and C7 rolls out new...
Well, you are in luck then. C7's release schedule seems to be directed specifically for your tastes :)
And if 5e doesn't work for you, there is always 6e.
My guess is that there will be significant changes. Simple platitudes of backwards compatibility intended to calm existing customers are always made at this point but rarely prove to be all that accurate.
Alacrast was the setting in SW1.0. It has since been replaced in SW2.0 and 2.5.
SW2.5 is a solid and flexible fantasy RPG. I would play it over the likes of 5e, Daggerheart and other modern D&D fantasy equivalents. It won't cover Alacrast as said, as SW2.5 has its own setting, which is also...
The fact that one book is called Character Rulebook and the other the GM's Guide bothers me more than it should :D It feels like changing from past to present tense midsentence. I prefer Player and GM or Character and Setting.
Starter Sets are usually loss leading products for exactly that reason.
This has been the case with The One Ring for 10 years now. The 5e adaptation is pretty significant and well thought out (though I find The One Ring to be my preferred version), so maybe they didn't want to make it seem like...