There's been rumours of a wildcard like Cyril Hanouna* standing. Which Macron apparently finds more worrying than a challenge from Le Pen if he manages to pull a big bunch of dissaffected/gilets jaunes type votes. That, er, remains to be seen though - to put it mildly.
Of course, Panzergirl was also around 30% two years out from the last election, and Juppé was the favourite. So, you know, counting chickens and unhatched eggs and all that sort of stuff.
*He presents a tv talk-show type thing called "Touche pas à mon poste!", which is quite popular with the sort of demographic that would have him qualified as "populist" should he choose to run
I doubt it will be Hanouna. But with Bigard already throwing his hat in the ring and withdrawing it you really get the sense that a Coluche-style candidate is dying to ride the anti-political wave. Son-Forget, somebody you will likely be familiar with, is perhaps in pole position.
I also think, while ruling out people like Zemmour and Onfray, eventually one of the famous talking heads/chroniqueurs of French politics will also throw their hat into the ring and do 10-15 per cent.
I think Macron's greatest fear though, before Panzergirl and whatever clown decides to run on behalf of all the Monsieur Blancs of France, is his own PM. After all Macron himself stabbed his own President in the back. And Philippe is somewhat more popular than Macron was as finance minister.
If Philippe runs would he run under LREM, LR or form a new party?