Ironically, despite Hus’ pacifism, the Hussites eventually killed each other off. During the Battle of Lipany, more than 13,000 Hussites were killed... by other Hussites. The surviving faction submitted to the authority of the Bohemian king, and were allowed to practice their religion in peace.
In 1430, the Catholic Church agreed to permit reception of both bread and wine at mass, providing it was proclaimed that either was sufficient. Many abandoned Hussitism, but it was revived 50 years later when a subsequent pope determined that impanation was still thriving. Following the reformation, Hussites tended to take sides with either the Reformation or the Catholic Church and Hussitism eventually went extinct.
Like the Cathars.
Ahhh, no. The Moravian Church--which founded Bethlehem, Pennsylvania, and Salem (of Winston-Salem) North Carolina have a good claim to be direct descendants of the original Hussites--pushed underground by Roman Catholic persecution, which continued into the 18th Century. Czech Hussites immigrated across the border into Protestant Saxony, Germany, where the refugees stayed on the estate of Count Zinzendorf, a noble who was also an ordained Lutheran minister, founding the town of Herrnhut (The Lord's House).
Zinzendorf helped them get organized, and became the lead Bishop in the Moravian Church (even while never denouncing his Lutheran orders)--and gave oversight to an amazing work by the Holy Spirit, moving the Moravian Church community to do amazing things--like a tiny community sending the 1st Protestant missionaries to the literal ends of the Earth...in the mid 1700s.
Mission Churches were established in the Aleutian islands, the South Pacific, and many other far-flung places--as well as numerous missions to the American Indians in Pennsylvania, Ohio, and North Carolina.
A 24 hour prayer chain lasted for 100 years....and at their peak, fully 1/3 of the Moravian brethren were missionaries--while 2/3 worked in Church owned factories in Saxony to support them.
Moravian worship and doctrine are distinct, and not identical to standard Lutheranism--though traditional Moravian belief accepts Protestant essentials. Education has always been important to the Moravians (eg. the famous "Moravian Star" was developed as a math-lesson in the mid 1800s).
So no, the Hussites didn't just become extinct.