Does Hyperion own the rights to OS 3.1, 3.5, 3.9?

[Steino]

we don't know if Escom ever owned the copyrights, so we don't know if any of their successors ever owned them...

They sure did, as has been known from official sources for more than 20 years:
     ...the sale of substantially all assets of CEL, CBM and certain of their affiliates (the "Commodore Entities") to ESCOM AG ("Escom")...
substantially all of their intellectual property, including technology, trademarks (including Commodore's logo and the names "Amiga" and "Commodore"), patents, copyrights...
 Emphasis added. Source: UNITED STATES BANKRUPTCY COURT SOUTHERN DISTRICT OF NEW YORK.

[psxphill]

When it replaces IPV4, it'll mean your Amigas won't be able to use the internet unless they have their TCP/IP stacks replaced.

We'll run out of IPV4 address space in lesss then 12 months.

IOS9 is causing a huge surge in IPV6 usage. But that means there are far more people running IOS8 and earlier than running Amiga's, which I think should guarantee that IPV4 will still be supported in 12 months time. There have been predictions that IPV4 is about to disappear for years.

I only use the ISP supplied router as a modem. It makes it much simpler to switch ISP every year to get a cheap deal. I used the same router on cable and ADSL (it's a WNDR3700 that is now running OpenWRT). Therefore I have IPV4+IPV6 locally, but I'm currently only getting an IPV4 address from the ISP's router (although it is an old one from the last time I was a customer of theirs).