My major concern is that if I do NIW + EB-1A and EB-1A gets avoid, will it have negative impact on the future EB-1A application when I have more citations in future? I thought the denied case might increase the chance of REF (or Void) in the future EB-1A application. Nope?
No. All I-140s are adjudicated individually. So, a denial of one I-140 should have no effect on a subsequently filed I-140.