MT4 support was stopped by the company so no new feature will be added.We will have new builds but for some fixing only
You can use Metatrader 4 on your computer to open any new account and use this account on your iPadOS.Or you
can start to use Metatrader 5 for example.
MetaTrader 5 iPhone/iPad Help - Connecting
to an Account and Opening a Demo Account