Sounds like this time they're going to try to work in secret
Instead of making everything public with a lawsuit. But if that's the plan, there's a certain orange buffoon who now has access to 280 characters per tweet who will probably spoil it by saying something like "FBI is trying to work with Apple (or whoever) to get access to shooter's phone, if they refuse steps will be taken!".
Or some similar meaningless threat that will be ignored because everyone knows Trump is a weakling who threatens but never follows through on anything.