I don't think this will ever happen, it's something that can't be done because otherwise it wouldn't be called the European Champions League, but it would be called something else. Honestly, they're trying to do this by including these Arab clubs, but it's simply ridiculous, these clubs will never be able to compete with the most prestigious European teams.
I don't know from where this opinion come? Why would UEFA include a Saudi Pro League or Emirates clubs to their competitions? Because they are too good to most of European teams? That is not enough?
Temporary inclusion might be possible due to wars or something like that but inclusion for more than a season is unlikely to happen in my opinion.
Members cited Kazakhstan, Azerbaijan, they are already in Europe or have parts of the country in Europe just like Turkiye and Russia.
The solution to include them is by creating international competitions like FIFA Club World Cup or maybe sort of Super Cup..