The semis have been held at the Queen's Park Savannah for the past two years but will return to Arima.
Peter Scoon, chairman of the Caribbean Prestige Foundation (CPF), organisers of Soca Monarch, said it was felt it needed to go back to the people of the East/West corridor.
"It was brought it to Port-of-Spain because of economics but at the end of the day we listened to the people and the people said take it back to the people of Arima. We want the involvement of the East/West corridor, people felt the energy was better," he said, noting that the semis got good support at the Savannah.
Another big venue change may be in the works for the finals of the show.
Scoon said due to World Cup activities, the Hasely Crawford Stadium may not be available to stage the Soca Monarch finals and other venues are being considered.
The 2017 edition of the International Soca Monarch competition will be launched on Friday at the Brian Lara Promenade in Port-of-Spain from 5 pm.
The format of the competition remains the same as last year with the live broadcast on Fantastic Friday in Trinidad and a delayed broadcast for international audiences.
The winner will be announced the following night.
Scoon said the prize structure is yet to be determined.
The competition is celebrating its 25th anniversary and many special surprises are in store to commemorate that, Scoon said, among them honouring of past winners.