Are there any demand planning software tools that handle seasonal spikes and new release forecasting?

Yes. Several demand planning / IBP tools are designed to handle seasonality and new product / new release forecasting (often called NPI, innovation forecasting, or analog-based forecasting).

Common tools that support this well

• SAP Integrated Business Planning (IBP)
  Strong in seasonal patterns, statistical forecasting, demand sensing, and planning for new products using analogs / attribute-based methods.

• Oracle Demand Management / Oracle SCM
  Supports seasonal forecasting, promotions, and new item forecasting through statistical models and planning workflows.

• Kinaxis RapidResponse
  Good for scenario planning, demand shaping, and handling launch/ramp-up uncertainty with supply chain visibility.

• Blue Yonder Demand Planning
  Known for advanced forecasting, seasonality, promotion effects, and ML-based demand models.

• o9 Solutions
  Strong in multi-echelon planning, AI/ML forecasting, and scenario planning for launches and volatile demand.

• Anaplan
  Flexible planning platform that can model seasonal demand and launch assumptions, especially if you want custom planning logic.

• Infor Supply Chain Planning
  Includes statistical forecasting and support for intermittent/seasonal demand patterns.

Capabilities to look for

If your main concern is seasonal spikes and new release forecasting, look for:

• Seasonality decomposition or automatic seasonal indices
• Promotion / event forecasting
• New product introduction forecasting
• Analog / similar-item forecasting
• Ramp-up / ramp-down curves
• Scenario planning
• Machine learning forecasting
• Exception-based planning

Practical note

No tool predicts new releases perfectly on its own. The best results usually come from combining:

• historical launches,
• similar-product analogs,
• marketing/sales input,
• and scenario planning.

If you want, I can also give you:

1. a shortlist by company size (startup, mid-market, enterprise), or
2. a comparison table of these tools for seasonal + launch forecasting.