After reblocking, should you wait for sometime before re-plastering?

I have approached a few plasterers to perform some work after re-blocking that will be performed in the next few weeks. One had indicated that I should wait 6 months to let the house settle after re-blocking before I replaster and patch up existing lathen plaster, as he has indicated that houses will potentially move again in that time.

Does this sound right? Is this potential movement anything more than natural movement that you would expect in any property.

The property is a weatherboard.
 
I would wait a few months because when ive done it, in old larth/plaster walls I've seen fine cracks after 6 months after the chocking.
 
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