I think Luca and Andrew will both be on the day bed outside like Jake and Teddy last year. The day bed in the new villa isn't as bed like as the old villa though so not sure how comfy it will be! Casa Amor always seems to have limited day bed space outside too - presumably to encourage the islanders to share beds with the newbies.
I don't think Dami will stray, I hope not.
I think Jacques is most likely to stray. Andrew might if someone is really nice to him, or if Tasha kicks off between being in the bottom 3 and leaving for Casa Amor.
Who knows what Davide and Ekin-Su will do! Until ES pursued Davide again I thought she was a dead cert to stray. Now she might not to stay in or she might to seek as much air time as poss.
I don't think they'll beat 2019s epic return from Casa Amor - Michael jumping ship, Curtis having his head turned and Amy's 'I came back here to tell you that I loved you'. Maura and Lucie's reactions and Anna's fury at Michael ditching Amber.