You’re wrong, there’s no chance Emerson would go out on loan if we sign him.
22yo is not a mere ‘development’ signing, he’d be competing with Tanganga for RB spot on first team.
Maybe and let's hope he slots right in, but he's a Betis player not really a Barca player until this summer ... it's a big step up to Barca but at least he's facing players he already knows - much bigger challenge to jump straight into the EPL where he will be facing the unknown.
But you make a good point, if he's going to share game time with Tanganga then keep him here.