Hey , i start playing again Lineage 2 since 2009 for your server. A friend of my played on H5 and suggested me to join as we did. This Interlude Season was your best, i saw h5 did hold that long as the previus interludes.
My suggestion is to improve with new events and gamestyleand fix your server from bugsmuch more. So a wipe on Interlude will be just fine i guess. Helios and Classic are new chronicles means less players,i don't know if pvp servers exist on this chronicle, plus you arleady got a huge community on IL.