Several sources seem to confirm that the wheels are in motion on the production of a second Italian Job. No word yet of MINI's involvement in the project. Here's an excerpt from a recent Variety.com article:

“While the sequel plot is still being fleshed out, St. Tropez, Paris and the Swiss Alps are being eyed as the primary shooting locations.

The nascent stage of the project makes it difficult to handicap which cast members will be back for encores. Most, if not all, made deals that did not include pre-negotiated sequel options; those who return for another heist will be looking for a bigger share of the loot.

[LINK] Variety.com