I think the gap is only going to widen. They are already close to signing Bruno and are also linked to Felix and Rodri. So despite having the best squad in the league(even in the whole of Europe maybe), they are still not easing up on the spending and are already lining up transfers.
The best players will obviously choose to play for them while we'll be left fighting for the scraps. It might be another 10 years before we have a squad better than them.