We've just posted a very rough beta which includes a prototype of this feature. This is not a promise that we'll release the feature, but we are hopeful.
We are prototyping a third-party library to render the PDF contents so you'll see a watermark on embedded PDF maps, but don't worry about that. What matters is that they're accurate and they render ok. The button to display a georeferenced PDF is the big gray blob to the right of the Plates window listing for the document. We'll improve the graphics for it if/when we release the feature, obviously.
Feedback wanted!

This Beta works fine on a HiSense Sero8. Just one cosmetic bug, when you stop naviagting  and return to route planning screen the virtual radar section below the chart is just black.

Please do keep the geo-referencing feature - and put some pressure on AFE to bring their plates up to date!

An annoyance, which your support people seem to have stopped replying to me about despite me checking with Google as requested and proving it is a developer issue, is that the Play Store installer settings include a GPS feature that my tablet doesn't have so Google shows it as non compatible with my device. Clearly it isn't a required feature as the Beta works on the tablet with an external GPS receiver and mock locations enbled. Hopefuilly when 3.1 is released this will be resolved.