From a toy magazine in America comes a small timeline of what we can expect of Transformers in 2014.
1st quarter (Jan-Mar) - Beast Hunters products still in release & first TF4 trailer released.
2nd quarter (Apr-Jun) - Movie product on shelves May 1st (in America, and should be about the same here).
3rd quarter (Jul-Sep) - Movie out in July.
4th quarter (Oct-Dec) - Movie out for Home Entertainment (DVD, BR, Download), & new Animated series out.
We probably won't know much more before Toyfair season now (Jan-Mar 2014).