It'd be great if Canon decided to do that with the R7 but I don't mind paying quite a lot if it's a really good camera.One of the reasons the 7D Mark II was as cheap as it was (it should have probably been priced in the low $2K range) was to entice the niche users who bought it to buy $$$ FF EF telephoto lenses.
Just like Remington practically gave away the handle to get you to buy their (uniquely sized) $$ razor blades. Just like everyone practically gave away cheap printers to get you to buy expensive ink.
If it's basically an R6 with a new aps-c sensor I'd expect the pricing to be similar to the R6 or maybe a bit cheaper.
I'd much prefer it to be a much more serious R3 style camera though and I'd be prepared to pay a lot more as it would be better than any other camera for birding.