I emailed in and received this clarification - Your royalty payment will process as normal through the transition. If you have a remaining royalty balance as of March 31st you will be paid out on April 15th, regardless of amount.

Just received this contributor communication from them:

Dear Veer Contributor,

We�d like to provide an update on the VCG acquisition of Corbis (including Veer) and what it means for you as a Veer contributor.

First a quick recap on the key elements of the acquisition:
Corbis has announced the sale of the Corbis Images (excluding Splash), Corbis Motion, and Veer licensing businesses to Unity Glory International, an affiliate of the Visual China Group (VCG), a leading Chinese visual communications and new media business.
Following this transaction, VCG is expanding its longstanding partnership with Getty Images, and, after a transition period, Getty Images will become the exclusive distributor of Corbis content outside China.
What�s next for Veer?
As part of VCG�s purchase of Corbis and expanded partnership with Getty Images, Veer clients will be transitioned to iStock, and the Veer site will be retired on March 30th.
New content submissions to Veer will no longer be accepted as of today.
Royalties will continue to be paid through standard processes throughout the transition period.
Following site retirement you will be released from contractual obligations with Veer.
We will not be migrating any Veer content to iStock. 
If you�re already a contributor to iStock there is no action to take, you will automatically benefit from the client transition.
If you are not currently a contributor to iStock and would like to be, here�s how to sign up:
Step 1: Join iStockphoto: http://www.istockphoto.com/join
Step 2: Choose a Member Name: http://www.istockphoto.com/create_membername.php
Step 3: Apply to be an iStockphoto contributor: http://www.istockphoto.com/sell-stock-photos.php
Please enter the code �VEER� in the �Contributor Invitation Code� field of the application process and the iStock team will expedite your application.
The Veer team would like to thank you for the partnership over the years.

The iStock team welcomes all Veer contributors not already working with iStock to sign up and contribute. We are excited to expose your content to more customers.

Sincerely,

The VCG, Corbis/Veer and Getty Images/iStock Content Teams