The Power Of The Daleks R1 DVD up for pre-order on Amazon.com
https://www.amazon.com/Doctor-Who-Power-Daleks/dp/B01LTHYIAU/ref=sr_1_1_twi_dvd_1?s=movies-tv&ie=UTF8&qid=1480025676&sr=1-1&keywords=power+of+the+daleks+dvd
The currently scheduled release date in January 31st. This was the date was posted in previously linked R1 DVD articles from, I think, TVShowsOnDVD.com. It appears to contain both the color and black and white versions, as was also stated in the linked articles. Cover art is also apparently available.
Ironically enough, I just ordered the R2 DVD Monday and it's already been shipped. However, there was no guarantee the R1 DVD would even come out. And there's no guarantee, still, that this R1 DVD will come out. Or, if it does, it isn't delay a long time like the R1 The Underwater Menace DVD. Plus, this R1 DVD is apparently an R1 NTSC version of the upcoming steelbook Blu-Ray in R2, since it has the color and black and white versions. So, getting the R1 DVD will be good for me, too, as I can get the color version without having to import the R2 Blu-Ray steelbook.