"More transpacific" can be a challenging phrase to find synonyms for, as it is a specific phrase that denotes the crossing of the Pacific Ocean. However, there are some alternatives you can use to convey a similar meaning. For example, "increased transpacific" or "deepened transpacific" could work well in certain contexts, indicating an intensification of relations or trade between Pacific Rim countries. "Expanded transpacific" is another option, highlighting growing connections and interactions across the region. Ultimately, the choice of synonym will depend on the specific message you want to convey, but these suggestions could help you communicate this idea more effectively.