Info from Microsoft on how the MCSA and MCSE certifications will be altered for SQL Server 2014:

In reviewing the SQL Server 2014 product, the Microsoft Learning Experiences team determined that the new features focus on performance tuning and high availability.  As skilling and testing around these features is best suited for the MCSE level, the following updates are planned:

1. The MCSA: SQL Server 2012 credential and associated exams (461/462/463) will remain in market without any alterations.  No MCSA: SQL Server 2014 credential will be released.
2. In March 2014, the MCSE: Data Platform (464/465) and MCSE: Business Intelligence (466/467) exams will be appropriately updated with SQL Server 2014 topics.  The exam numbers will remain the same.  At least one month prior to the update, details on the original and revised exam objectives will be made available for review in the Skills Measured section of each Exam Detail web page.
3. Also in March 2014, recertification options for maintaining the MCSE credentials will be made available.

More info:

Dec 2013 Update on Developer and SQL Certifications