We are planning on removing the RS-Classic to RuneScape item-transferal page tomorrow (on Friday 23rd-Apr) As we've said previously we don't want to keep the two games permanently linked, because doing so limits the potential of our new game engine.
We are instead going to run them as two separate games, which don't affect each other. In particular we want to increase the amount of bank space RuneScape players have, but can't do this whilst the bank system is still attached to the old RS-Classic bank system.
Therefore this is just a quick warning that today is your last chance to move items from RS-Classic to RuneScape.
The Jagex Team