As outlined on page 4 of the European Commission’s proposal to amend the Capital Requirements Directive, the Commission has been developing proposals since 2005.
The document can be found here:
http://ec.europa.eu/internal_market/bank/docs/regcapital/crd_proposal_en.pdf
The Commission published its proposal to amend the Capital Requirements Directive on 1 October 2008.
A copy can be found here:
http://ec.europa.eu/internal_market/bank/docs/regcapital/crd_proposal_en.pdf
There have been no such discussions as far as I am aware.