In a book on NLP I read some time ago there was something that may answer your question.

Anchors in NLP are things, symbols, words, etc, which become linked to particular states of consciousness and feelings.

Pick a symbol you can visualise easily, or a word. Go over the experience of being lucid over and over while holding the new anchor in mind.

If it works, every time you visualise the image or think/say the word, it will invoke the lucid dream state, or remind your subconscious mind of your intention to have a similar experience again.

It could help I think to focus on the anchor before going to sleep, or especially before a WILD attempt.

Also imagined sensory information and memories held in the mind act on the brain in much the same way actual experience does, they call up the same feelings and sensations. So if you went over the lucid dream in as much detail as possible before a WILD, I think it would incline the brain to generate that state again, the simple recollection and immersion in the memory, could lead to the actual thing. The memory of the state, under the right conditions, could lead to the real thing.