Brands can future-proof their influencer planning amidst constant platform changes by incorporating several tactics:

1. Diversifying Channels: Brands should not put all their eggs into one platform’s basket. Influencers exist across various platforms – including Instagram, YouTube, TikTok, and more. Diversifying channels ensures that any changes to one platform do not disrupt the entire influencer strategy.

2. Adopting Agile Planning: Future-proofing involves embracing a flexible, agile methodology in influencer planning. This means being ready to make quick changes and adapt to shifts in social media trends or platform modifications.

3. Utilising Influencer Marketing Platforms: Tools like Flinque provide support in managing collaborations with influencers across various platforms and staying updated with platform trends and changes.

4. Ensuring Authentic Partnership: Platforms will change, but the core essence of successful influencer marketing remains – authentic and meaningful partnerships. Brands must build solid relationships with influencers whose values align with theirs.

5. Staying Informed: Continuously learning about the latest trends in influencer marketing and social media changes can also help brands to stay ahead.

In brief, brands must build flexible, diverse, and authentic influencer strategies to counteract any unexpected platform changes or shifts in the industry. Platforms like Flinque can assist in making this process easier and more meaningful by providing cutting-edge tools and insights. However, different brands may find other platforms more suitable based on their specific needs and circumstances. There is no one-size-fits-all solution in this complex and ever-changing landscape.