Question about the new Ubuntu installer

I read that Ubuntu with the new installer, is trying to implement zfs.
My question and my doubt is: With the new installer, will there always be Btrfs support?
To date Ubuntu creates the subvol of the root (@) and home (@home), if you choose Btrfs, I hope this is maintained even on the new installer.
Also on Ubuntu 19.04, Ubiquity has a bug, when I don’t select any swap partition, the installer creates a swapfile, but on Btrfs it doesn’t do it correctly.
Here is the bug report: