Could Airbus just want to lure Boeing into giving up the MAX early with this headline? Might be considered a promising moment with all those MCAS-troubles.
Can't see Airbus wanting Boeing to drop the MAX: overall the A320 family is superior to the MAX and is gaining market share. I'm sure they'd rather this continued than Boeing launch a new narrowbody which would redress the balance.
A350 re-engining is confirmation of current studies for installing UltraFan as a major product upgrade in mid 20s. Obvious and logical thing to be considering. Unlikely another engine manufacturer would be considered - or would consider it - given installed RR base.