This new skill set has to include a strategic perspective, business acumen, a knowledge of metrics, conflict resolution ability, decision making skills, speaking ability, a knowledge of changes in technology (to include the use of social media) and a ongoing legal and compliance awarness. Being a Futurist is also an important skill. Helping your organization see the future and prepare for the future will make you very valuable. The days of "carrying the watermelon to the company picnic" are over. Continuing education programs, both live and online, help you improve or acquire skills.
Consistent reading, a skill losing traction everyday, will also put you in the top of your class. Self-improvement guru, Brian Tracy, says in his book Time Power, "Read at least one hour per day in your chosen field. One hour a day will translate into approximately one book per week. One book per week will translate into approximately fifty books ove the next twelve months. If you read an hour per day, one book per week, you will be an expert in your field within three years. you will be a national authority in five years, and you will be an international authority in seven years. All leaders are readers." What a powerful statement!
If you are not yet convinced to the importance or need to keep up then watch this YouTube.