LeClerc "Pencilled in" is meaningless:
Nothing is binding and everything can change, until we have an actual signed trade deal
BUT
the UK legally can't sign trade deals until after Brexit
and
trade deals normally take years to negotiate.
It would be legal to negotiate during the A50 period and sign the day after Brexit.
and very simple bilateral trade deals with some of those African countries at least, are theoretically possible
However, there are no signs of negotiations happening
The roadblock:
Negotiators - particularly from the other countries - need first to know the terms of the UK Brexit deal - if any - before they can start work
They are very skilled, expensive staff in short supply, so no country would leave them hanging around defining alternative strategies for the various possible Brexits.
The UK's very small number of trade negotiators are already overwhelmed by Brexit
They certainly wouldn't be sent to do deals where the UK currently only exports £4 billion, compared to the EU where the UK exports £240 billion
(I'd keep an eye though on what Werrity-Sniffer Liam Fox is up to in the USA, with the agreement to keep talks secret for 4 years after a deal)