The Sunflower Trophy races at Bishopscourt are back on the calendar for 2013 after being cancelled this year because of a lack of entries.
The short circuit showpiece is to be run on Saturday 12 October, one week before the final round of the British Championship series at Brands Hatch.
The Hillsborough Club had tried to stage the event at the start of August this year but the move backfired.
The Mid Antrim 150 road races will now revert back to its early August date.
The Mid Antrim moved to a June date this year, but will take place on the Clough circuit on 3 August next year.
Meanwhile the traditional Easter short circuit meetings at Bishopscourt and Kirkistown will hope to attract some top entries as they will take place before the start of the British Superbike series the following weekend.
The Bishopscourt race will be staged on 29/30 March, with the Kirkistown event on Easter Monday, 1 April.
The Kells road races, which were not held this year, have been pencilled in for a July date next season, with the Athea and Munster races also back on the schedule.
The Ulster Grand Prix is moving dates, with the Dundrod Bike Week running from 11-17 August.