To me it would make sense that it goes temple raid, feed, fort for last event. That would put fort at 4th event (the newest/original cadence). If fort is after this Pvp it is only 3 weeks (the failed new cadence), but hey our speedups are worth 25% more sigils that way.
Event cadence was ‘changed back’ only because they will make it TEMPLE RAID->FORTIFICATION->FEEDING then new season BREEDING->KINGDOM WARS because everyone wants a PvP in the first 2 weeks of the season because of the discount dragon and kingdom wars is the worst PvP event possible. Boring as watching grass grow but everyone will spend just to get their sigils.
Except when they don’t, like when the last event of Spring was Feeding. They’ve started a season with Feeding two out of the last three seasons, but they most certainly do not ALWAYS do so.
We could just agree that it makes very little sense to speculate since there’s nobody listening either way and every trend or regularity is not taken into account when changes are being made either.