Bede's Hattrem evolved and saves Rose who was defeated by Eternatus.
Everyone (Leon, Raihan, Hop, Marnie, Piers, Nessa, and Melony) fights Eternatus and knocks it down, but it seems to be changing form.
Sword wanted to forge the Rusted Sword and Shield, but he seemed to be poisoned by the poison (Eternatus's) left on the Sword and Shield?
Bede gets a lot of focus in Sword & Shield. Even though Hop and Marnie didn't get much attention (especially Marnie), they got involved in the battle with Eternatus. Still waitting for Hop to gain spotlight. Marvin also is (While he's not in the battle with Eternatus, I think he'll get the spotlight at some point). And Marnie has a Morgrem, so I guess her Morgrem might evolve into a Grimmsnarl in some point like Bede.
There seem to be three rounds left until the mini volume 5 is complete. I don't know if they will serialize Sword & Shield until mini volume 6 as usual or end it with mini volume 5 and spend the rest of the time serializing LA/DP remake or something new chapter?
And Yamamoto posted the drafts he drew before serializing Sun & Moon on twitter. It seems to be a tribute to a manga creator Fujiko A. Fujio who passed away recently. But I don't know if it contains other hints?
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I forgot Zacian and Zamazenta weren't there yet, so they may hold on for more rounds.