Just knowing how she's acted in the past it's almost certainly just marketing. She's already done pretty much everything. She's crossed all the boundaries. By covering up now she's holding that carrot on a stick to keep people coming back for more.
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eltaco commented
treetrunkanal commented
Actually it looks like any scars healed. From her fridge set you can see a lot and where scars usually are they are absent
Xcelsr commented
she is a pro at reading her audience and generating expectation. So, when people wondered why no show, she likely choose to bank on it 
exileh77 commented
(I'm commenting from ignorance) maybe she has to put makeup over the scars. From what i've seen many people that have done surgery end up with those ugly cuts for a long while (again maybe im wrong).