Sakshi: I agree with you. While everyone expected big changes across both SEO & SEM due to new SERP layout, there hasn't been any reliable conclusion about the impact of this new change on SEO Traffic, CTR or CPC of Google Adwords. Following changes were expected:
Reduction in SEO traffic due to increase in visibility of Ads
Increase in CPC due to higher competition in Google Adwords
Increase in CTR for the ads which've been able to gain top position.
Reduction in impression share for ads which earlier had position on 1st page but now gone out of page 1 due to lower no of total ads
What SEO and SEM changes did you expect?