I imagine a lot of people are thinking about this sort of situation right now. I’ll give my thoughts on your situation and also use my own (different but conceptually similar) as a comparison / way to illustrate my thought process.
I think she’s still very good, post-rebalancing. It seems you do too, since you’re not talking about stripping her and feeding her to Aife or anything. So, she’s still probably worthy of emblems.
I took her to +7 shortly before the balancing, feeling I’d be happy with that (I mean, I still want her on offense and stuff), regardless of the final changes.
Which creates one big difference between us; node 8 is particularly emblem expensive. So you get more out of resetting than I do.
What I’d encourage you to do is to look at that through the lens of opportunity cost. There are two major costs that I see: where the emblems currently on Telluria will go and what you would otherwise do with the ham / iron you’ll essentially ‘lose’ by resetting her (really it’s pay those costs again to re-up her to +6 or whatever, but you gather my meaning).
Other Paladins: you have a great candidate in Clarissa. My emblemed Paladins are Frida +7, Telluria +7, and Costume Sonya +14. All are performing great there and I’m disinclined at present to give more to any. My other maxed Paladins aren’t getting any: Aegir, Falcon, and Cyprian. I have some strong options (e.g., Clarissa, Heimdall, Richard) that could be good, but they’re not close to max. Conclusion: I’m happy to leave things as they are and store emblems for now. You have a very strong hero ready right now, so your cost (of leaving things as is) is much greater.
What you’re talking about here is in the category of optimizing your roster. I imagine those heroes are performing fine right now. How high a priority is optimization? Here are some things that I think I’d value more highly: critical base building, essential event / titan items, and emblems for those who desperately need it. Personally, I don’t have any critical base building going on (what I’m doing I can keep up with). And I’m flush with items (I’d just be laying in greater stores, so this can’t be a priority). But I do need to spend emblems. Between the SGG emblem gift released with the rebalance and what I had stored (I was doing other stuff and didn’t have a comprehensive plan to spend the emblems, so they were accumulating for a while), I have a decent stash of emblems across the categories. I’ll probably move to spend these soon, so that’s where I’ll want to direct my iron and ham. I have no idea what your resource needs are, but I’d wait until you have no other pressing needs.
Personally, if I were in your situation I’d probably wait. We don’t really know how the Telluria change is going to shake out (in terms of how much Top 100 tank share she’ll hold, and how she performs in the current raid tournament may also be informative), and Clarissa is still a bit of an unknown right now. I’ve seen a surprising number of reports where people are underwhelmed. I get that she’s different, but Gravemaker is the correct comparison here, and she’s certainly NOT being talked about as nearly as impactful (which actually might mean she really DOES need those extra emblems).
Ultimately, you’ve played this game for a long time so you probably know this: patience is often rewarded. I wish I had saved more of my Atlantis coins until late in the season (because Ursena). I’m currently accruing a big pile of Valhalla coins. Those who rushed the AL have much ragrets. Those who drew extensively at the first costume chamber may have a costume with no underlying hero. If you stashed summon token from the time the first Path of Valor was announced you easily completed the summons mission. Someone in my alliance was trying to decide on the next red and I pointed out that Kong may become a cleanser and suggested trying to wait, if they could. The change dropped literally the next day. We almost always do better when we act with more information. In this case, a month or so should be enough time to get more clarity on the current Telluria and Clarissa builds, and that’s an acceptable amount of time to wait, I think.