Hontiveros is basically the Opposition Leader (what's left of it) at this point once outgoing Philippine VP Leni Robredo leaves the political scene on Thursday, June 30th:
RTVM live-stream of the Inauguration of Ferdinand Romualdez Marcos, Jr., as the 17th President of the Republic of the Philippines set for June 30th, 2022 at the National Museum of Fine Arts:
Outgoing Philippine VP Leni Robredo on her final day in office
Live coverage of the Inauguration of Philippine President Ferdinand Romualdez Marcos, Jr., as the 17th President of the Republic of the Philippines at the National Museum of Fine Arts.
*Departure Honors festivities for Duterte on Malacanang Palace Grounds followed by Honor Guard Inspection of the AFP.
*Inauguration festivities at the National Museum of Fine Arts: Toni Gonzaga performing the National Anthem of the Philippines "Lupang Hiriang".
*Military Parade.
*Oath of Office followed by 21 Cannon Salute.
*Welcoming Honors festivities for President Marcos, Jr., at Malacanang Palace followed by the Honor Guard Inspection of the AFP.
Inquirer's coverage of the Inauguration of Ferdinand Romualdez Marcos, Jr., as the 17th President of the Republic of the Philippines at the National Museum of Fine Arts
I should note that Marcos, Jr., is the third child of a former Philippine President to hold the Presidency following Gloria Macapagal Arroyo (2001-2010) & the late Benigno Simeon Cojuangco "Noynoy" Aquino, III (2010-2016).