@Anthony S 

Does the below mean that we will not be able to efile ANY delinquent 2018 returns on Monday, even if the delinquent return isn't claiming any of the extenders?

https://proconnect.intuit.com/community/proseries-news-and-updates/discussion/2018-irs-tax-extenders...

(interestingly, I could comment/respond to the above thread...the learning curve continues)