Installing distro packages
New versions of openSUSE ship with the Wine development release that was current at the time packages were frozen for release.
Up-to-date Wine packages are available through the Wine repository on the OBS. Marcus Meissner builds packages for the biweekly releases of Wine and Wine-staging as well as daily snapshots of git. Simply add the repository to Yast2 or zypper and install as you would any other package.
Due to patent issues, the Wine packages on the OBS are built without mp3 support. Packages for wine-mp3 and its dependencies (libmpg123) are available in the Packman repository.
On the OBS
If you merely wish to recreate the distro package with minor modifications (e.g., adding custom patches), the easiest way to do that is by branching the Emulators:Wine package on the OBS, applying whatever changes you wish to make to the spec file, and building from that. See the openSUSE Build Service Tutorial for information on how to use the OBS.