Let me get my scrying stones out...
I don't know what the devs are thinking, but guessing from the way most library development goes I expect they'll continue without any integration and with about the current feature set for a while - fixing things and getting general "alpha-ish" features working.
There'll be a significant shift about version 0.6-7 as more people start to use it, and we'll see an embeddable canvas etc shortly thereafter.
About version 0.95 the devs will be contacted by Sun, who ship them all out to Silicon Valley to work full time on it.
Version 1.0 will be accompanied by a huge release on the main page of Sun.com, Slashdot and OpenGL.org. With the release of version 1.4 an exclusive deal is signed with Sony, and the PS4 is announced as a massively parallel-processing pure Java/OpenGL platform. Six months later, Cas gets elected to be a permanent member of the UN security council. The Isle of Wight is renamed the "Isle of LWJGL". Half the money gained from the whole project will be spent on lawyers.
I guess the first part of this will be pretty accurate, but as things go on I expect my predictions will be a little off. All apart from the Isle of Wight.