See: NOTE from: Presidency to: JHA Counsellors (Migration, Integration, Expulsion): Proposal for a Directive of the European Parliament and of the Council on the conditions of entry and residence of third-country nationals for the purposes of highly-skilled employment – Blue Card Reform: State of play and possible way forward (13407/20, LIMITE, 26 November 2020, pdf, emphasis in original):
“In light of the above and with a view to testing possible compromise solutions regarding the following political issues, the Presidency would like to ask Member States where and to what extent they see room for manoeuvre concerning these points:
I. Harmonisation
1. Parallel national systems (Article 3 paragraph 4)
(…)
2. bilateral/multilateral agreements (point (b) of Article 4(1))
II. Skills
(…)
III. Long-term mobility (Article 20)
1. Notification procedure vs. application procedure
(…)
2. Start working immediately
(…)
3. Documents to be presented
(…)
IV. Unemployment
(…)
V. Labour market tests“