According to the City of Anaheim's "Anaheim Development Activity" webpage, there are two proposed hotels within the Anaheim Resort District.
From Case Number: DEV2015-00075 entails a proposed 5 story 75 room hotel at 1100 W Ball Road. This project also proposes two underground levels for parking.
Map: 1100 W Ball Road
According to the OC Register, the proposed 12 story hotel project will be a four-diamond JW Marriott located at the Gardenwalk mall. The hotel is proposed to be built on a vacant lot that is next to the mall.
The article also states the developer has plans for a second four-diamond hotel at the Gardenwalk mall, however no hotel operator has been named yet.
This news brings much new activity to the under performing mall as a recent OC Register article stated the House of Blues which is currently at Downtown Disney will be moving to the Gardenwalk mall.
Map: 1775 S. Clementine Street
Rendering of JW Marriott:
Update on Garden Grove's Site C Project
Further south, in the City of Garden Grove, OC Register states original location of Joe's Italian Ice will be indefinitely closing operations on September 1, 2015 to make way for a new luxury hotel. This lot that includes the soon to be former Joe's Italian Ice is a part of what is known as Site C. OC Register states Site C has the potential for three hotel buildings all totaling to 769 hotel rooms.
Project Location (Source):