If you don't already know, the first of the new Mass Effect novels is ready for pre-order. Just search Mass Effect book, and you should see it. It's less than $7 USD on Amazon.
But, I've found a little news on the new comics. Here's the link to the article I read: polygon.com/2017/2/13/14601142/mass-effect-andromeda-comic-discovery. It has information about the release date of the first issue and a synopsis. It is supposed to be 4 issues long.