I remember back in 1990, the then head of Whidbey Telephone David Henny struck a land-use deal with Langley. In exchange for the approval to build a significant relay station structure on Third St next to the mentioned lots,  he would leave those corner properties on Second and Third along Debruyn as open space. In other words, they would not be developed. 
This agreement approved by the City Council (which I sat on at the time) also included a small swath of the land be given to the city where a bench was to be put. This never happened.
I recall in i990 how preserving open space was favored by many in Langley due to the recent rash of large developments that concerned some (i.e. The Inn At Langley, Francisco's Restaurant, Langley Village).
I believe any plans to develop those lots will require the City to first relinquish its 28 year old agreement with Whidbey Telecom. I wonder if the present mayor/council are aware of this past agreement.