Without Woodrow Wilson Germany will get worse treatment then in OTL since the right of self-determination won't be as respected as under his presence, and thuse Entante will divide Germany as it sees fit, so no plebiscites perhaps.
I was under the impression that Wilson cared for every self-determination but the Germans'. The absence of the 14th points, if anything, would help to make Austria-Hungary survive as a loose HRE-like confederation under the leadership of Emperor Karl, as a counter balance to Germany in Central Europe.