In my opinion, the big difference is the exchange change (Moving the Shares). Frankfurt (today) is still buying pink sheet shares. The understanding here is that they are moving to the AIM exchange, with all of it's reporting requirements and everything else. The AIM is considered a more legitamit exchange then the Pinks.
You would be absolutely correct if the moving to the AIM was merly set up similar to how the Frankfurt situation is currently set up with pinks. Sort of like a Point of Sale front where all the shares still resides on the pinks.
I'm not sure I answered your question. You may go back and read some of the PRs and how they were worded to determine what you think is intended.
That is one of the reasons why this is taking so long IMO.
Whatever the case, TDAmeritrade would still have access and ability to buy and sell shares on the AIM or Pinks, or Nadaq, or Dow.