So do you think that Pioneer will release any more BD/DVD-A/SACD players with PQLS via HDMI? As far as what you said about players using the same internals, remember, the Yamaha BD-A1010 and Pioneer BDP-52FD are similar, yet different. The Yamaha uses the MediaTek MT8530 CPU and sends DSD to PCM at 176.4 KHz. I don't think it has Pandora, yet it has streaming apps not found on the Pioneer. The Pioneer uses the MediaTek MT8555 CPU. It sends DSD to PCM at 88.2 KHz, and it includes PQLS via HDMI. It doesn't have as many streaming apps as the Yamaha. They were both 2011 models. I can see why you would say that they are generally the same, but the style of the GUI, the CPU, digital audio transmition, and streaming apps are different enough that it might affect someone's purchasing decision.
I really don't know. I would imagine they will if I had to guess; at least PQLS to mate with their receivers as a marketing point. DVD-A and SACD are more or less dead formats so I don't personally see a benefit in paying the licensing fee. Even Sony has given up in this area.
Pioneers receivers are mostly all the same platform with small changes to amplifier power or some very small features that are more or less insignificant. IMO Pioneer haven't really done anything significant in Blu-ray players since the BDP-51/05/09.