There are some types of orchids that do go dormant and lose all their leaves. But to my knowledge, Phalaenopsis don't do that, at least none of mine ever have. They bloom in early spring here, grow new leaves and roots over the summer and start their budding in winter when they get a bit of a chill at night.
You do have lots of good healthy looking roots there, but unless it puts out a new leaf or two some time soon, I don't think it's going to survive long term. It looks like it's growing in some sphagnum moss, which is sometimes a problem for these plants, too.
These plants grow in nature attached to tree trunks and branches, so their natural form is hanging downwards so that the leaves can drain when it rains. Yours is standing straight up, which is what the mass producers of these plants do so they're easier to ship when in bud or in bloom. But it's unhealthy for the plants.
I'd suggest a new pot or basket for this plant with new bark medium, and put it on a slant at the edge of the pot so that when/if new leaves grow, they will hang over the edge of the container. The flowers will also cascade downwards when grown this way, so hang it up to facilitate this.
For now, keep it in good light and keep those roots growing, hope for leaves!