As you may already know, the SQL Native Client OLE DB provider is being deprecated. This doesn't affect other OLE DB providers or the OLE DB API. Also, the SSIS OLE DB components are not being deprecated.
In SQL Server 2012 SSIS, you can continue to use OLE DB connections and will need to for components such as the Lookup transformation and the Slowly Changing Dimension transformation that require OLE DB. In the post-Denali release, you’ll be able to upgrade and continue to operate these packages without needing to do additional work to explicitly remove OLE DB from the packages.