Yes, Trump will win the nomination if he continues to win primaries/delegates at his current rate. Ted Cruz could win the nomination but will have to improve his vote totals to do so.
Please stop using antiquated terms like “brokered convention.” There are no brokers who control state delegations as in the distant past. Party nominations are won through the primary process.
The term is not antiquated.
Brokered convention
In United States politics, a brokered convention is a situation in which no single candidate has secured a pre-existing majority of delegates (whether those selected by primary elections and caucuses, or superdelegates) prior to the first official vote for a political party’s presidential candidate at its nominating convention.
(Definition from Bing.)