Glad that Lorde and Miller were fired. The accounts of what they were doing sound atrocious. Ron Howard should be able to safely steer the ship into port (which is the best outcome that Lucasfilm can hope for at this point).
A film about Ahoska would be a terrible idea. Of course, a film about Han Solo isn't a great idea, either. A film about Lando would have been much been much better, IMO.
The stand-alone films have to be about characters or events known to the average SW film fans; the overwhelming majority of them don't watch the cartoons or even read the other books or comics, so they won't be interested in films starring those characters or about those events. Those characters/events already have an avenue - the cartoons, novels, and comics.