It was already discussed here. Ferna is going this summer, Gundo can split his minutes between 8 and 6 positions
That's a fucking awful idea in my opinion.
I love Gundo and he's a capable 6, but this season has shown us that in certain games there is no substitute for a quick, physical number 6 who knows all the dark arts of the position. Fern at 35 has shown why Pep always needed someone hard to cut through the nonsense. Keita at Barcelona was a key player in some massive games despite Busquets/Initesta/Xavi being one of the best midfields ever. Pep needed Vidal at Bayern for the same reasons.