Frontlines are just fine, no need for any changes.

[Moomba33]

But since this thread is in General Discussion where many Non-PvPers look:
Have you given PvP a try?
If not, why?
If yes, do you still play occasionally?
If not, why?

I've tried PVP on a few occasions. The old level 30 Wolve's Den once for the PVP participation trophy, Secure out of curiosity back in the day (but not Slaughter), Seal Rock (curiosity again), 8 man Feast when it was released to try to get a Fenrir Pup, and Frontline Roulette (mostly Shatter matches) to farm Wolf Marks for stuff like minions and Orchestrion Rolls.

I haven't played since getting the rewards I was interested in this patch. I'm not a very competitive person.
Shatter is probably my favourite PVP mode for the same reason a lot of PVPers hate it-I can contribute a lot to my team's points without engaging other players

Feast in particular also had players with very bad attitudes. I was playing in the unrated mode during preseason and I was still seeing abuse directed towards players for poor performance, especially healers.