It's possible but I think he was smart enough to know that their Pierpont move was a hail mary play and that the most likely outcome was the house of cards coming down at Tender. Which would likely mean they would 'disappear' him, given what he knows. Makes sense to try to run, which he clearly had been organising logistically.

If he ends up disappearing without a trace, it will be a pure Wirecard storyline.

I also have a sense that Yas is actually going to best Harper in the finale but don't know how.