Starship Entertainment released on July 22 (KST), 

"Hello. This is Starship Entertainment. 

MONSTA X's 1st world tour 'Beautiful' is being carried out successfully thanks to your support. 

First, we apologize sincerely for worrying you all with news of Hyungwon's health issues ahead of MONSTA X's first world tour. Currently, Hyungwon has regained his health after plenty of rest and recuperation. After the diagnosis that he was okay to promote again, and due to Hyungwon's strong will to return, we have decided to add Hyungwon to the 'Beautiful' tour in LA. We cannot thank you all enough in words for your worry for Hyungwon, and your encouragements. 

MONSTA X will be present as a full group for 'MONSTA X The 1st World Tour - Beautiful' in LA. Thank you again to the fans who have waited and worried. We will do our best to make sure MONSTA X carry out the rest of their world tour in good health. Thank you."

It looks like Monbebe in LA will be the first ones to see Hyungwon back!