Spanish radio network Cadena SER have observed that sporting director Loren was in attendance, as Costa Rica took on Spain in Leon on Thursday night, with further discussions scheduled with the player and his agent, as the Basque club seek to give Campbell any and all of the final assurances he needs.
The 22-year-old, who assisted the opening goal of the game for Costa Rica against Spain, seems to be satisfied a move to Anoeta will be the right option, declaring after the international match: "It's an honour that a team like Real Sociedad want me."
However, Campbell was also cautious to point out: "My contract belongs to Arsenal, so we'll have to wait and see what happens."
Clearly with that in mind, David Moyes has reportedly been taking the matter into his own hands, having met his Arsenal counterpart, Arsene Wenger. The Scottish coach is aiming to move things along as swiftly as possible, although the Frenchman is apparently in no hurry to do so.
For the moment, it seems Moyes will have to remain a little more patient, although at the very least so far, it appears he can count on the willingness of Campbell to join.
Whilst it's increasingly unlikely Campbell will feature for Arsenal, as they plan ahead for the 2015-16 season in the Premier League, it's inevitable The Gunners will want to get the most beneficial deal, before they let him leave.
The current uncertainty possibly surrounds whether Real Sociedad want an initial loan deal, with an option to buy, or whether in fact they've made a cash offer of around €6 million.