List of indoor arenas by capacity
Arenas under construction
Table:
Arena
Capacity
City
Country
Open

KJC King Dome
70,000
Davao City
Philippines
2020

Bangkok Arena (Bang Na)
15,000
Bangkok
Thailand
2023

Studying the table information on 'List of indoor arenas by capacity', section 'Arenas under construction', formulate a single-sentence overview of the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.