I don't get why Progressive exist. Why not just focus on the series going forward? An interquel seems unnecessary.
progressive is how he visualize the series but didn’t get a chance to write it that way once it got picked up and also cuz he got better at writing he said
It’s highly regarded cuz of the details of how kirito and Asuna started and their struggles
So he wants to write it floor by floor
He is still writing the main story it’s in the new arc with a few volumes already
I haven’t read progressive yet but heard great things bout the novel
If anything I think he may rewrite the main series beginning also so it flows better too till where they beat heathcliff in aincrad just that arc only tho so I wouldn’t be surprised he does that as the definitive version of aincrad arc