the new sources for gold keys sound like a step in the right direction. spiral scene is cool as a decorator & general housing fan, & spiral showcase seems OK since i think many players do that for SoF points, especially those that don't like the combat events. i think how good these sources actually are will kinda depend on how late the keys are in the reward track, though. if placed too far in, it may not feel fair or worthwhile enough. i guess we won't know until those events come around.
daily assignments is also a decent new source. though not that “exciting,” daily assignments are simple to do. a gold key every 15 days is about two keys per month per character, which is serviceable. but this is assuming the key drop is guaranteed & NOT just a chance. if it's actually the latter, that's a different story. depending on how high or low that drop chance is, this source might be a major letdown.
i wonder, though… would the daily assignments key reward have better replaced at least one of the extra gold rewards added last update? many of us were bummed to lose the old arena ticket rewards just for more gold, making 9 of the 15 days only give gold. if the key reward replaced even one of those gold rewards instead, the overall keys we can earn would stay the same without us losing the third chest reward on day 15, which is arguably more worth keeping than extra gold days. but again, this is assuming the key drop is guaranteed, which i don’t know yet (but am starting to doubt). also, if the key drop is actually added on top of day 15’s chest reward, not in place of it, then that's fine. it’d be helpful if the patch notes were a bit clearer… i'll have to wait until i reach day 15 to understand better.
i think another key source that could help round out the new system is a PvE crafting recipe, so that more PvE players have a fair, but not trivial, way to earn keys. the recipe could use some of the rarer & special reagents found in PvE. maybe participation trophies could get a new use this way? or what about the mote reagents dropped by some key bosses & one-shot gauntlet bosses (alongside their ultra plant & daily assignment sources)? or what about wood & stone keys, which are apparently still dropping? maybe some of the rarer metal reagents too? things like that, i imagine. the recipe shouldn’t be super easy, but i’d hope it’s reasonably demanding WITHOUT feeling unfair. ideally this recipe is open to a range of levels, not just those late-game. perhaps this crafting source would also be a fair compromise between players and devs over adding direct key drops back into “standard” PvE combat, which devs seem unlikely to do.
overall, i think the new key sources are an improvement. however, i still think devs could add a few more types of sources so that more players at least have something they can do, something that fits their playstyle & what they like to do, to get gold keys. but until then, this is a decent start.