This fall I would like to see refreshed MBP 13" with 10nm 4-core i5 Ice Lake U processor (with new integrated Wi-Fi card AX) and finally new scissor mechanism keyboard.
In case of OLED screens be careful what you wish for... because OLED panels have significant current draw (much shorter battery life) and I believe this is one of reason why Apple does not want to offer it now. Also according to external tests OLED delta color errors are much higher (see Dell 7590 tests) so percentage of screens that can fulfill Apple hardware requirements is much lower so overall unit cost is much higher than in competitor products (Dell or Lenovo does not worry about delta color errors, brightness uniformity/ light leakage etc. which is visible in almost every test where panel is focused only on brightness and maybe contrast ratio).