I received the printed Belgian version of the flyer in the mail today (in Dutch), looks like the new vacs don't have automatic filtercleaning after all. There's a mention of self cleaning, tear resistant "vlies"filterbags. Those bags deflate when the vac is turned off, this would result in being able to extract 4 times more fine dust and reduce bag consumption. (It sounds like this would give the performance of a vac with automatic filtercleaning, but you can use a bag)
I once bought a box of the "vlies"bags for my CT by accident, they were the old, non-collapsing kind, and I did like the tear resistance, (every once in a while the paper bags will tear before they're full, and I need to thoroughly clean the filters; I thought this was caused, by the "water level checking antenna's", when I repeatedly check if the bag is full yet; but it could also have been caused by sharp debris)
The price for the "vlies" bags wasn't that much higher than the paper bags, but the dealer I visit most often doesn't stock them, or I would have gotten them again.
/edit: I just went to the website, and since it's available starting april (which is now ;D), the specs are on the site. The price is the same as the ctl 22, and it has slightly better suction (3900l/min for the cleantex ctl 26 vs 3800l/min for the CT22).