Do I wait for the 5 speed?

I wouldn't do any business with Passon. There is a 19 page post on here about the A855-5 Speed by Matthon. It's about all the **** he had to go thru. You better sit down and take the time to read all 19 pages. It started on Aug 26, 2019- Nov 11, 2023. It might save you some grief!
If i would stick to that story that i think is WAY too much overrated, i would not buy anything from anyone. I would not deal with that Matthon either. I own one A855 since 2017 and i am very pleased about it. A tough piece of engineering that fit without major surgery to do. Glad of my choice and no regrets.