What is the new restaurant there ?

The property has multiple food and beverage outlets. Plough is the main restaurant on the lobby level (open for lunch and dinner), and the Exchange is the rooftop bar (primarily evening only). There is also a Starbucks open daily on the lobby level, and 2 Kings is the main breakfast option on site. Room service is also available, however this has been limited due to COVID-19.

https://www.marriott.com/hotels/hotel-information/restaurant/lnsmc-lancaster-marriott-at-penn-square/