I like the way the quiver attaches. I'd like to see some pirates/navy klickies with scabbards in that style as well. That would be great.
I'd like that too, on the left hip for swords, right for quivers, but with a couple of reservations.
1) they would have to make replacement connectors available on DS, for when they get pulled off - I have several Police figures off eBay with missing holsters, so children clearly do this quite a lot.
2) a sword in a hip scabbard would prevent riding on a caparisoned horse, and might interfere with a long cloak, so they'd have to still use the sword belt for some figures.