The new engine will be worth several tenths, the Merc apparently degrades with use more than their competitors. Merc have been using Russell and Bottas as testers for the engine. They seem to have figured out a way to run it at much higher performance levels without it exploding, although the downside is they need to replace them a lot.
That said Hamilton is under investigation for a technical infringement found when the stewards checked his DRS. If correct he will be disqualified from qualifying and start from the back for the sprint. Wherever he finishes he will then get the five place penalty applied for the engine change.
Of course the tinfoil hat brigade is out as in parc ferme VER can clearly be seen touching HAM’s rear wing.
Obviously Spanners is joking in that tweet, however it is weird for VER to be touching the other car like that.