The contracting-out model survives
After the first consultation the Commission provisionally decided against abolishing security of tenure and against making it mandatory. Protection stays the default, with the ability to contract out.
For the tenant
Your renewal right is not being taken away. The negotiation still turns on whether the lease is inside or outside the Act.
For the landlord
Contracting out remains available, so the standard warning-notice-and-declaration route to an unprotected lease will still exist in some form.
What to look out for
This is provisional, not law. Nothing changes until a Bill is passed, so continue to serve valid s.38A warning notices and take declarations.