Post Update: Regen III will be SCH 59, and we pick up Regen V
AS OF RIGHT NOW... this is underwhelming, BUT also in the list of tweaks is having Regen lower in duration and higher in Cure power under Light Arts... Isn't that a Curing Modus Veritas without a separate JA? If this isn't done well, then ........ yay a too long to cast Cure Spell. If it is done right, however, and taking in to account SCHs ability to Alacrity/Celerity spells, this might actually be a step in the right direction for a damage mitigation tool (not curing per se, but relieving the strain of Cure IV).
As a side note, if this is the case and it works well it kind of makes me wish Dark Arts naturally made Helices do more damage and last a lower duration (Natural Modus Veritas).