If at all possible, some sort of ‘native’ and official python3 support to make it easy to write own scripts without having to rely on helper/3rd party scripts that may or not be maintained and developed. Like an official python3 module that integrates with openhab.
(I know of habapp but its classbased and object oriented and seems uneccesary hard to understand how to use for atleast novice scripters/programmers like me. I use jython now and it works just fine so far but it’s old and outdated).