Does Eloqua Insight show the Campaign data on Emails that were removed from Campaign Canvas?

Summary: We have recently implemented multi-branding. Because we have different Email Groups for the different brands, we need to recreate the Emails. Suppose we have Email 1 in an evergreen Campaign. We replace Email 1 with Email 2 on the Campaign Canvas. What happens with Reporting?

Prior to the Email replacement, if we were to run the Campaign Analysis Overview report, it would contain the statistics from Email 1. What happens after Email 1 is replaced with Email 2 (i.e. Email 1 is no longer on the Canvas)? If I were to run the Campaign Analysis Overview report, would it show the statistics for both Email 1 and Email 2?