No you are not getting skipped. L900VPAMC2 is the current Baseband version for 4.1.2 and the L900VPAMK4 with be the Baseband version for the 4.3 update.
You are getting 4.3 what part did you not understand!?!?!
You currently have L900VPAMC2 which is 4.1.2 and when you download the latest update you will have L900VPAMK4 which is 4.3.
I can't make it any more simple or clear.
It comes in waves. I haven't gotten it yet either and and the same for my wife and kids but a couple friends already have.
If you are in that much of a rush goto XDA and read on manually updating.