Energylandia have outlined their plans for reopening:
Google Translate is a bit rough, but from what I gather the key points are:
-Drones used for disinfecting the park
-300 disinfection stations for guests to clean hands
-Staff temperature checked at start of each day
-Some form of mass temperature check upon entry for guests
-Ability to buy food in advance via an app (you can even order food when in a queue for a ride)
-Staff divided into areas, and to stay strictly in those areas
On top of the standard social distancing, wearing of masks, etc measures we've seen other parks do. Unlike other parks, you can buy tickets on the day, but it's encouraged as much as possible to buy in advance.