In the future, the MPs said, the Migration Advisory Committee should provide estimates for expected arrivals from countries involved in any future enlargements of the European Union.
The EU will also start talks with Bosnia-Herzegovina about a Stabilization and Association Agreement, which could be a first step toward the EU's future enlargement into the Western Balkans.
Similarly, French ministers may rejoice that Serbia's voters choose Europe, but in 2006 France was pushing the idea that future enlargement should be assessed according to the EU's "absorption capacity", a dangerously vague term that includes voters' "perceptions".
Vast as the terminal already is, it has been designed to permit future enlargement.
Asked about the effect of including Turkey in future enlargement of the European Union eastward, he said, "In my opinion, it would be the end of Europe".
Twice in the past fortnight, Cameron has threatened to veto future enlargement of the EU unless there are new curbs agreed on freedom of movement – a fundamental EU principle – for the acceding countries.
At least some of those who voted no may have done so in protest at the recent and future enlargement of their club.
It should clear the way for proper debate on the club's future enlargement, stopping opponents of Turkish accession, for instance, hiding their real objections behind the mere absence of a new treaty.
If the EU can use the tough love of frozen funds in Bulgaria and yet still maintain voter support, that will be a boost not only to reformers in that country, but also to the whole cause of future enlargement.
The strategy paper is sensitive to doubts in some member states about future enlargement.
