If AVGO acquires QCOM then you'll have 25% return. If AVGO doesn't acquire QCOM and QCOM acquires NXP then that will be a huge plus for QCOM . NXP acquisition increases QCOM's margins down the line.
5G launch (Pilot phase in 2018 in USA and Japan. By the end of 2020 several countries will have 5G on full scale basis) will boost QCOM significantly. Its agreements with Samsung, Oppo, Xiomi and other mobile manufacturers are major support. Any support from Apple will be just a bonus. 5G launch will make QCOM a top class investment for another 6 years.
Disclaimer: This is just my opinion, not an advice. Trade at your own risk.