The HP-37s scientific calculator?

[EngineerX]

Hello all,

Let me ask you this:

If HP were to release the successor of the 35s, what features should it have?

Better quality, modern, and larger natural display?
Integrals, derivatives and summation on keyboard, with ability to apply these to the equation list?
More memory?
Ability to use 2 ou 3 characters to name variables and programs?

Thanks in advance.