Apple has registered five new Mac and iPad models, which means Apple is planning to release those in the future.
The five Mac model numbers are A1931, A1932, A1988, A1989 and A1990. The first two numbers are thirty, while the last three are eighty and ninety. This points at different ranges.
The last three numbers may relate to refreshes for the 13-inch and 15-inch MacBook Pro, and the first two numbers may be a refreshed MacBook 12" and a new MacBook Air model.