I'm so glad you posted a new thread, and just in time!
John's plan is disturbingly coercive still but I'm pleased to see you are making your own plans. I hope they hit him where it hurts most, I really do.
I believe more than ever that it's imperative you not only change the locks after Tuesday, but do not allow him access to your house again once the removers have been. He clearly thinks that leaving stuff at your house will make it still half his, and that he will be able to continue to control you through demanding access whenever he feels like it.
So I also suggest, along with many others, that you get the removalists to take the rest of his stuff at the same time and pay them yourself for the extra boxes. It will save you money in the long run because it will only be one "call out" and one trip - and it will be worth it just to get ALL his shit out in one fell swoop. Even if you never get the money back (which you might not), it will still be worth it.
His plan to pay the utilities on your house - just No. Another control mechanism - he might "forget" to pay your electricity bill so you get cut off. Get them in your name ASAP. If they stay in his name, he might also attempt to use them for credit against your address - another good reason to not allow this.
You're doing SO well though - and I bet he is just confused and bewildered over how well you are doing, because of course you should be in the throes of despair at losing him! 
Keep on keeping on - get him and his shit out ASAP - then lock him out forever and move on with your life. 