Opportunities to sell shares under favourable conditions may arise if the company receives an offer to be acquired, decides to make a public listing on the capital market, or a more considerable investment is made, and the new investor makes an offer to take over the minorities.  
Experience with more mature markets has shown that if a company grows fast and attracts investments from venture capital funds after the equity crowdfunding campaign, there is scope for receiving a purchase offer for the participants from the initial campaign. 
However, it should be noted that startup investments are long-term, low liquidity and high-risk investments, as detailed in the Terms and conditions.