Looks like our friend Third-of-Five, otherwise known as Hugh, will be back in episode 3. He received his nickname while under the tender loving care of Geordi and Beverly, but if his memories have returned and he's able to remember his pre-Borg name, we might have to get reacquainted with him under a new name. Or if he simply decided to change it because he thought "Hugh" was a dumb name. It's unclear why the designations Seven and Third-of-Five weren't consistent with using cardinal and ordinal numbers (not "Seventh of Nine"), and clearly this is a plot hole that PIC will have to spend a ton of time addressing. And that is meant to be pure sarcasm, if you hadn't guessed. In any case, since we've learned that Geordi is still alive, hopefully he & Hugh are roomies.