I too recall reading somewhere, a few months ago, that EASA said that it would be the OPS stuff which would enable it to control 3rd country aircraft.
The OPS NPA has been published (NPA 2009-02), but as seems to be EASA's convention, did not include a draft Cover Regulation. The OPS Cover Regulation will be similarly worded and will apply to "air operators using aircraft referred to in Article 4(1)(b) and (c) of the Basic Regulation and personnel involved in the operation of such aircraft". Note that's the same scope as the Part-FCL cover reg.