I think it's still early for that. In the meantime, I suggest two apps that kind of resemble to our beloved Boost: Jerboa, and Connect. Check them out.
I'm still cycling between apps almost daily, and none so far ticks all the boxes for me. I have Liftoff, Connect, Jerboa and Voyager on my phone right now. I tried Thunder a while back but didn't like it.
Sync is on it's way and it will come down to either that or Boost in the end for me, I think.
Thunder has a two-column feed setting, not sure about any other tablet optimizations yet! There should be a new full release this week or next, but the latest build on GitHub is quite solid and has a lot of improvements from the build currently on Google Play