Well the hi-frequency network is more or less being replaced with the lettered arterial bus lines (with the exception of the 16, which was replaced by the Green Line), with few exceptions (no plans to upgrade the 515). The (weak) reasoning for not updating the Hi-Freq map is that they aren't really pushing that as a brand anymore. Plus, with opening another aBRT line every year, they'd be changing it quite often. It should just be removed from the website if they aren't going to bother keeping it current.
As far as a parent brand for the A Line, B Line, etc., it was going to be "Rapid Bus", but they scrapped that for the time being. The current thinking is that the letter line names provide enough branding on their own and don't need another layer of branding. After a few of them are rolled out, Metro Transit is going to reevaluate if they need a parent brand.
Thanks for the information and for the pictures in the above post as well. I guess with only 1 commuter 1 BRT 2 LRT lines in operation the vision is still kinda undefined. If the Red line, and aBRT paint schemes were flipped then the abrt and local bus line would have a simular format while the Red line BRT would have a more blue dominate color which would better relate to the blue LRT trains and the blue commuter trains. I do like the phase out of the high frequency bus routes. Instead of Rapid bus, I hope they consider labeling it under the Metro name. Metro A or Metro A Bus has a nice ring to it, plus when ever I think of Metro I think of a transit line that has high frequency in buses that I don't need to check to see the next bus time. If the aBrt buses can provide that then I don't see the reason not to include them. Are they concerned it would cheapen the Metro brand, or it's image?