According to the Irish Independent, Ryanair is closing in on a deal with Boeing for additional B737MAXs now that re-certification of the type is looking to happen in the next month. The airline is said to be planning to place an order of between 150 and 200 B737-10s. If the deal goes forward it will definitely be the largest order this year for an aircraft manufacturer.
Currently, Ryanair has orders for 135 B737MAX200s, a special developed variant of the B737-8 that is able to carry up to 197 passengers. This aircraft features an extra evacuation door. The airline was due to receive their first MAX in April this year, but the grounding of the type has, of course, prevented that.