Mr Caffell said he would also be putting his name forward for the urban ward, and Mr Holmes would be seeking a return to the council, contesting the "at large" poll.
In 2010, Mr Caffell and Mr Holmes, along with Chris Peterson and Toi Walker, challenged Mr Daniell for the mayoralty. Mr Daniell won, having secured 3066 votes to be 382 ahead of Mr Holmes, who had largely campaigned on the new sewage ponds issue.
Mr Caffell wound up in third place, securing 1223 votes, with Mr Peterson and Mr Walker failing to reach 1000 votes each.
Confirming he is seeking another term, Mr Daniell said he was determined to follow through on the governance issue and was mindful the new term could be limited to two years.
Mr Daniell said he was putting his full weight behind a standalone Wairarapa Unitary Authority as he did not want Wairarapa to become " subservient to Wellington".
As mayor for the past six years, Mr Daniell said he was delighted with what had been achieved while his hand had been "on the tiller", and with the co-operation he had received from his council to ensure progress on needed infrastructural work had stayed on course.