Here is the relevant snippet from Ken Potrock's letter to members:
"
Now, effective April 4, 2016, Members who do not
purchase their ownership interest directly from Disney Vacation Club will not have access to other
Membership Extras, such as exclusive Member experiences and discounts. Please know that as a
current Disney Vacation Club Member (regardless of when or where you bought your membership),
your access to Disney Differences and these additional Membership Extras will not be affected by this
policy change."
I'm sure you will all read about the details elsewhere on this board, but thought maybe people who had their contracts in ROFR would panic (as I likely would) and would want to know whether they would be affected by this change

.
Ultimately, buyers of resale contracts whose contracts are not yet at Disney for review as of April 4, 296, and all resale buyers going forward will no longer have access to any of the extras listed under Membership Benefits. This includes dining and merchandise discounts, annual pass and ticket discounts, TIW card (unconfirmed but likely), access to TOTWL (unconfirmed but likely), ability to attend member events such the Merry Mixers and Beach Bashes, and basically anything listed under the Member Benefits tab so I know I'm missing a lot here. Oh, pool hopping too.
Basically, they sent out new member cards so that they could vet the members who would have access to these privileges. No new resale buyers will be issued membership cards going forward.
Again, this doesn't affect you IF your contract is already in for review at Disney.