Similar questions have been asked before, but I feel my situation is slightly different so I would like to hear someone else's opinion.
My employer is looking at adopting a new piece of technology, and through the project that I'm involved, I'm the one who has been designated to pick this up. They are looking at having other colleagues also pick it up, but as I'm the only one in this project, I'm the one who is starting it all. This means I've been spending some figuring out how to best adopt it and I'm also expected to attend some courses. Now, I don't mind doing this, the technology is interesting and it sounds like fun.
The problem I am facing is that I am trying to switch to a different field within my industry, so I am not planning on staying at this company. I don't have a lot of experience in this new field, so I'm currently working on some side-projects to brush up on my skills before I start applying for jobs, so I have no idea how long it will take before I feel comfortable making the switch.
On the one side, as I don't know when I'll be leaving, I don't really want to mention anything as I don't want to suggest I'm leaving before I have anything lined up. On the other side, I feel bad about been given this responsibility knowing I want to leave and I wonder if I should just make up some excuse as to why I don't want to do it.
Should I just keep it to myself or is it worth mentioning anything?
See these other questions for reference:
How best to handle leaving a company when there is training already booked and paid for in advance?
Company has been highly invested in my training. Is it okay to leave?
Changing jobs shortly after expensive training