Jordan569

Hello I have a question if anyone knows much about the new bar 54a coming out? First eARC ? That is a biggie, then I've been reading about the Bar 48 how you can use a 2nd Klipsch subwoofer any ideas if this will carry over to the Bar 54a? Finally third I would love to be able to use the threes surrounds that go with the Bar 48 as a 2nd pair of surrounds with 54a so out of the box 5.1.4 but possible to upgrade to 7.2.4 any chance of this? Any facts or opinions welcome.