I'm not sure that the issues about new MSDS's for HC-110 and T-Max and the new catalogue numbers for so many of the Kodak Alaris chemicals necessarily mean that products are all going to be changed.
The minimum quantity rules have been improved and some of the packaging has been changed - each of which can lead to changes in catalogue numbers.
The info on this developer seems to almost warn against using it in a replenishment regime - a significant difference from XTol, and a major reason (in my mind) that it would not serve as a useful replacement.
And by the way, both this product and the packaging for XTol make up 5 litres - not 5 gallons.