Coolstar said that there will be Electra jailbreak for iOS 11.3.1, it's a vary good news for jailbreakers. i am waiting to him.
He also said that it's everything ready just waiting for Ian Beer exploit to finish it and make public. let see what will happen.
There is how to prepare your device:
1. Upgrade/Downgrade to iOS 11.3.1
Upgrading or downgrading to iOS 11.3.1 should be your number one priority right now. Staying on the right version is essential if you want a jailbreak.
Although Ian Beer’s exploit will likely work on iOS 11.3 and below versions, the hacker didn’t mention the full compatibility range anywhere.
Therefore, it makes sense to stay on iOS 11.3.1 firmware, at least for the time being.
If you updated to iOS 11.3.1 via OTA, fire up iTunes and upgrade (shift + Update) using the IPSW firmware file while there’s still time. Apple will probably stop signing iOS 11.3.1 come June 4.
If you already have a jailbreak, you must restore (shift + Restore), not upgrade, using iTunes. Updating your iPhone or iPad may cause issues in the future.
I have never experienced any problems with updating but it’s always good to stay on the safe side.
2. Save SHSH Blobs
SHSH Blobs are still relevant and will allow you to upgrade to iOS 11.3.1 once a jailbreak drops in the future.
With that being said, SHSH Blobs are essentially useless for iPhone X users.
Even if you use FutureRestore somewhere down the line, your Face ID will break and it will stop working.
If you happen to own an iPhone X, you can upgrade to iOS 11.3.1 right now or stay on iOS 11.1.2 or below and use Electra Jailbreak.