I'm glad for what we got... And the episodes were amazing. Though I had kind of suspected that it wouldn't continue beyond Cell due to how they ended it off. It felt like too final of an ending for them to pick back up.
At the same time though it kind of pisses me off.
Every time they took on a new project they'd say "Oh, it won't affect DBZ:A". But then the release schedule for DBZ:A took a major hit. It slowed to a crawl. They opened their patreon to get money to make a studio so they could more easily work together. And, for many people, it was to make DBZ:A (that's why they donated). But it always seemed like DBZ:A took a backseat to everything else they wanted to do.
It felt like DBZ:A became more of a weight they were obligated to do to keep getting the patreon money rather than something they wanted to do. So honestly it felt like the ending was only a matter of time.
I highly doubt they'll ever continue DBZ:A. Once a project is ended it's really hard to pick it back up and start back up.