To have some Input And Output Modules so it would be like a Programmable logic controller (PLC)
The input/output Modules can be TTL and/or Analog
This would help lower the need for some of the other Modules
*Also A Servo interface would be nice. So that it can interface with like RoboteQ AX2850.
Oscilloscope Module, i would love.
I also like these ideas (not mine)