You may be in luck, depending how your laminate is installed. Many of them are tongue in grove floating over a padding layer and only secured around the perimeter, sometimes with little beads of adhesive along the tongue/groove that would fairly easily be disrupted. If this is the case, you can re-arrange your laminate planks to fill/shift the island hole, using extra from where you don't want it under the new cabinets! Best bet is to call in an opinion of a flooring installer. A skilled professional or DIYer can do this so it's indistinguishable from a virgin layout, with NO sign that the island has been shifted, in the flooring pattern!

This post was edited by beautybutdebtfree on Wed, Mar 26, 14 at 9:28

We added to our laminate floor (was in the kitchen and we added it to the open concept dining room) The installers staggered the flooring in the kitchen so it was just a matter of taking out the cut pieces and putting in the longer pieces....can't tell where it was spliced. I think you can rearrange your planks to fill the gaps where you move your appliances/island. I know when we bought our laminate flooring (about 10 years ago) the installer made sure we had a few pieces left over to replace in case it was needed.