Will Task Ownership Update Data Change?

Posted on behalf of Ben Funkhouser. Original posting date 2014-10-31.
Hi,

When someone uses the new GUI interface to change the owner of a task, will the data I receive in the Task Update change?

For example, now I can detect an owner change by receiving the Task Event and looking at:
{ "changes": "owner_id" }

Will this continue to be a singular data point or will it become an array?
I can see it working both ways: if it's singular but sent once for each new owner that works for me - but will it still be called "owner_id"?

Thanks!