There have been some signs of improvement of late. Visas are being issued at a greater rate and more rapidly. Of late, we have been told that three or four shipments were actually permitted to enter the country.
There's speculation as to why the Assad regime is more cooperative of late. One theory is they see that it's working and that it has a legitimizing effect. The other theory is that of late they've watched their partner and ally, Iran, strike a nuclear agreement with the international community, and they're following suit, in some sense, to see if it will protect their interests.
In terms of diplomatic engagement, the pressure remains on the regime to continue to provide this access, but it's complicated, because the regime doesn't control all parts of the territory. Great parts of the territory, including some border crossings, are not in the hands of the regime. Rather, they're in the hands of different opposition groups, and as I've indicated, the opposition is not a monolith.