Yep, definitely a different map, but that's OK.
Anyways, my report: it works exactly as it should. The divide-by-8 co-ordinates were bang-on, and the two portals I used (gas's, and the one east of "dironasResort" near the npc town) worked exactly as expected. They were almost-exactly on their divide-by-8 co-ordinates in the nether. The eastern one was moved just slightly because of being over a lava pool otherwise, but only by less than 10 from where its "ideal" location would be (and it's on a bonanza of soul sand if anybody needs that for traps, etc). To triple-confirm, I traveled from one gate to the other completely in the nether, and came out in the correct spot on the other side. So they work exactly as expected. And as before, Dirona and I's gate connects to Gas's destination one-way. That's expected given proximity. I should be able to make a new gate in the nether that will connect "right" as well if I wish.
Our old constructs are gone on the new map (obviously). But I'm not re-creating our safe nether travel system until 1.9 hits, since that brings nether strongholds and such, which we want. But there's no detectable "bugs" with the nether as it stands right now from Caprica. I have not tested Ragnar or anywhere else.
WARNING:
I've partially protected the gates (only barely), but do NOT go in to the nether unless you have flint & steel with you because the ghast fireballs WILL disable the gates if they hit (they did multiple times while I was visiting). If the portal vanishes (the part you step in, not the obsidian, as that's invulnerable to Ghasts), light a fire on the inside of the obsidian and it'll come back quickly.