Our current site has become outdated, it's in classic ASP. We have recently redesigned the site using Magento. Basically all the URLs are different, however the content is about the same. We did a soft roll out of the new site, along side the current site, making it a sub-domain using www1. We are directing roughly 8% of our current traffic to the new site.
I found a good article on how to execute the full cutover: How to Avoid SEO Disaster During a Website Redesign
My concern right now is that the sites have been running side by side for over a month now. I had planned to be cutover by now. The new site has a new GA profile but I haven't submitted it to any search engines as the plan is to give it the www domain when the cutover happens. However the www1 is being crawled already. Probably because the bots got redirected from the current site.
My question is if I'm going to start running into trouble with search bots the longer these two sites run side by side? IE. duplicate content, competing rankings, etc. Unfortunately the cutover has be delayed until some other important, unrelated projects are taken care of.