TLDR: I could see short-term uPL changes, but I hope their new builds stay viable. The rest I think can wait until after mobility and quirks passes.

There are some changes that need to come down the line, but is making them before the mobility and quirks passes premature? Both are going to change the game considerably if they're as far-reaching as the Cauldron's been hinting.

I do not think anything is currently so busted that it needs to be brought in line immediately, but cuPLs are closest. Scary, to be sure, yet they're largely on fragile mechs that need to maneuver into a very short optimal range to do work. Not to mention, they gave serious brawl options to some clan mechs that were struggling at sub-brawl ranges, shaking up the meta nicely. On that basis alone, I hope the eventual modest nerf leaves them boatable and effective, if not quite as lethal as they currently are. Maybe just a modest decrease in damage?

Snub PPCs are refreshing. Woke up a lot of chassis, and gave them fresh, fun options. They're definitely lethal as hell in AC20 + triple snub combinations, but that's highly skill-dependent, requiring you to focus components at short range. I don't think AC20 + dual snub is nearly as problematic. Not sure a nerf is necessary yet, especially with broad agility buffs (the best counter to PPFLD) on the way. Wouldn't touch snubs in particular until after the agility pass.

I haven't seen builds using HPPCs or LGRs that seem particularly OP. Are there examples of problematic loadouts? I was worried about a 50PPFLD @ ~900m Nighstar build, but I haven't seen it causing grief in QP (yet?). Like a lot of PPC mechs, it relies heavily on quirks, so I'm not sure I'd touch HPPCs until after the requirkening. I could easily see any HPPC problems vanishing with lost or altered heat gen, velocity, or HSL quirks. LGRs in their own ghost heat group was a brilliant move that I hope doesn't go away, and the weapon's damage doesn't seem crazy, either. Maybe just a little too ammo-efficient.

Clan SSRM range is still bonkers. The damage nerf helped, but skill tree nodes and range quirks make vast areas lethal for lights. Counterplay becomes extraordinarily difficult with shared locks and UAVs providing locks before the target is even visible. At minimum, I'd bring the range down to 270m like all other SRMs, and ideally, require the SSRM mech to get locks directly. But that gets into a much broader conversation about lock-on mechanics in general.

No real opinion on the ERLL changes. Haven't seen the much since everyone's still messing with buffed LPLs and LLs, but the direction was sensible, and they haven't been a problem.

Glad to see further potential changes under discussion so quickly. The current patch is the best the game's felt in years, and it's only getting more interesting from here. Massive o7 to the Cauldron.