Wonder Trade is a feature introduced in Pokémon Vortex v3 that allows players to randomly trade with another player using the feature. Wonder Trade is accessed from the View All Pokémon Menu.
It was released on 12th March 2016 just before the Super Secret Event .
How to Wonder Trade ?
Step 1 : Go to View All Pokémon under the Your Account tab.
Step 2 : Locate Wonder Trade option beside your Pokémon's name and click on it.
Step 3: Follow the process and complete the Trade.
Step 4: If you didn't like what you got, put it on Wonder Trade again.
How Long Should it take ?
It depends on how many people are using it. It's Player to Player so we can't do anything about it if no one is using it.