[KHUX NA: 01-09-2020 & 01-10-2020] Version 3.5.0 update includes UI changes and more, daily gem event, and a Terra, Aqua, & Ven draw

So, the update finally came, and with it come 4 new medals with a new mechanic.

So, this Supernova Restore mechanic is great and all, as long as your medals have Supernovas that can boost your STR. Restoring anything else is essentially just a waste of time, given how things have gotten. A few things to note about these medals.
First: the individual medals (Terra, Aqua, Ven) don't boost your STR. Be aware of that and keep in mind that it could end up decreasing your overall damage output.
Second: these are the only Upright medals that will restore Power/Speed/Magic Supernovas. This means that if we ever see another medal that restores Power/Speed/Magic Supernovas, it'll have to be a Reverse medal. They didn't say that the combined TVA medal would be the only Upright medal to restore Upright Supernovas, though, so expect to see more like that one.
Speaking of TVA, point 3: this medal is way too expensive. It costs 280 VIP coins, which means you have to pull 28 times (just short of doing the mercy on each of the 3 banners), and that means you have to have 84,000 jewels. Unless you spend real money on this game on a regular basis, DO NOT chase this medal. And even if you do spend regularly, it's still hard to advocate for getting it. Maybe we'll get another shot at the medal in the future, but for now, consider it a lost cause.
Now, should you pull for any of these medals? Honestly, it doesn't seem all that necessary. It's a little too soon to tell if these medals are something everyone needs or if they're just a novelty for those fortunate enough to pull them. Ideally, wait until the banner is about to end to see what's coming next before you decide if you want to pull or save.

The points banner is a godsend for a large chunk of players. So many of us had a bunch of T4, T5, etc. medals being used in subslots, and most of those medals got replaced by the Kyroo medals. Before this banner, the idea was to either sell the old medals or use them for trait rolls (if you still care to trait outdated medals). Now, though, those of us who hoarded the old medals and duplicates can finally get rewarded. Every pull costs 100 points, and each (attacking) medal you sell gives you points equal to its tier level. Note: a 6* T5 medal is worth the same amount as a 7* T5 medal. Each pull is for a single Supernova+ medal, including some of the ones that were previously exclusive (Xigbar, Demyx, the Foretellers, DFF Sephiroth, etc.).
Now, while this is a great deal, you may also get some lackluster results (things like T8 Starlight or T8 Dark Riku). Another thing to keep in mind is that this banner lasts throughout the month, and that means that you can sell any of your junk medals from any pulls you do during that time as well. However, it's not advised to waste jewels on pulls just to try and get trash to sell for points. Just let these things come naturally, and you're sure to get at least a few medals you wanted.

The only other thing to talk about is the Keyblade War completion campaign. While the event isn't going away, it is rewarding those who can complete it now. And really, with our medals being as strong as they are now, this should be pretty doable for a large chunk of the playerbase. Remember: if you need any help, it never hurts to ask.