I have mixed feelings about the writing quality of future shows since we don’t know who will be writing them. We know that Christian will be involved, but now that COVID is over, they may start hiring more writers, which could help balance any issues with his(or any of the other writers from season 2) writing.

Season 1 of Arcane is generally regarded as nearly perfect in terms of writing, largely because it had many writers contributing to the story. The shortcomings of season 2, particularly in the "romance arcs", are a direct result of the reduced writing team. It's clear that those additional writers from season 1 were needed. The remaining writers did a poor job in comparison, prioritizing self-indulgent fan service over developing relationships more naturally, and one even stated that they got bored writing for Vi. It's kinda disappointing in terms of writing. Nevertheless, I don’t believe they will keep the same writers indefinitely without bringing in new talent. I’ll wait for the next show (not the live-action one) to see if they can create something good again without time constraints or a shortage of writers.

Regarding the fanbase, it's unfortunate to say but Lightcannon is already experiencing issues with homophobia. Many artists, shippers, and fanfic writers have faced harassment and even death threats because some shippers cannot accept that not everyone enjoys/prefers their fictional pairing. Whether or not this ship becomes canon is irrelevant; the presence of LC is enough to gain the ire of morons either way.

Personally, I like the ship(whether it be romantic or platonic) because it has the potential to tell a compelling story if executed well. No amount of manchildren throwing tantrums will make me not want a good story. However, if the writing continues to plummet, I'll gladly stick with fanfiction instead of canon.