For SQL Server 2008, 2012 and 2014 the trace flag behavior remains the same.
For SQL Server 2016 the trace flags are available but the behavior may be altered by the design changes.
Trace flag 2549 is used to change how DBCC sees the volume layout of the database. The SQL Server 2016 design change uses the CheckScanner instead of the MultiObjectScanner improving I/O behavior. The design change significantly limits the scope and need for trace flag 2549.
Trace flag 2562 is used to change the batch sizing used by DBCC. This is behavior is unchanged in SQL Server 2016. Use this trace flag with caution as it may require additional TEMPDB space.