Hi Yannara,
This is also discussed here https://social.microsoft.com/Forums/en-US/33f3b28f-b5ec-4f84-b979-60ee83cbc396/mcse-mobility-exams-expiring?forum=CertGeneral
And that topic has some answers.
If you still need addiotional information try the Microsoft Born to Learn blog, that blog is monitored by staff from Microsoft Education.
Danny