Many variable contrast papers are "speed matched" to a light grey tone somewhere between zone VI and VII, for grades 0/(00)-3.5. So if that happens to be the tonality on which you based your main exposure it should remain relatively constant as you adjust filtration within that range. However this will vary depending on the paper, the filters/enlarger etc etc. Further, local contrast will change in addition to total contrast so as you work on the print you'll likely need to make adjustments to the base exposure, add burning/dodging etc.

This is all best done by eye as you proceed from contact sheet through work prints. A soft contrast contact sheet/proof sheet is a good start since it will show you what is in the negative.