Paper published vs in preparation?

Don’t assume AO’s will necessarily connect dots from different sections. What most people here are advising is mentioning that you will be a second author on a paper submitted (or to be submitted) for publication is a plus, but what will be more of a plus is to put that in the context your role in the research wherever you choose to mention this., e.g., “Compiled data on XYZ in lab as part of research of ABC [to be] submitted for publication in EFG Journal. Will be listed as second author.”